With the release of Shadowkeep's raid Garden of Salvation a brand new Exotic Quest has been discovered. Here is our guide to finding and completing the quest step Divine Fragmentation on the Moon.
Finding The Divine Fragmentation Quest
To get the quest, you'll need to head to the Raid entrance on the moon. It can be found in the Lunar Battlegrounds. The easiest way to get there is to land in Sorrow's Harbor and head for the red bridge to your right.
Once you go through the battlground, you'll see a cave in the cliff to your left. This cave leads to the Garden of Salvation raid and is where you'll go to find the quest. Once you reach a giant Vex gate, you'll need to kill multiple waves of enemies that come through it. Eventually, just like the Vex invasions, a boss enemy will come through and, once defeated, will drop the the quest.
Completing The Fragment
The description of the quests instructs you to leave the Moon to find a Vex Construct. There are 3 lost sectors you need to explore in order to finish the quest. The first is called The Conflux and is located on Nessus.
Land at the southern most teleport point and head left into The Cistern. The Conflux is the Lost Sector in this zone. Once inside, you'll notice a small hidden room up and to the right just as you enter. You'll find a Construct inside that you can activate which will spawn a Vex. Kill the Vex and interact with the Construct to finish 1/3 of the quest.
The next stop is a Lost Sector called The Orrery. Teleport to Artifacts edge and the The Orrery will be just bellow you on the left. This time the room your looking for is a little bit deeper. Look for a set of stairs before the boss room and you'll find the secret room above it on the left. Once again, you'll need to activate a Construct, kill a boss, and then interact with it earn another 1/3 progress on the quest.
Finally, teleport over to the Watcher's Grave and make your way north and around into The Tangle. The Lost Sector in the Tangle is called Ancient's Haunt and you'll find the final Construct in there. About midway through you'll see the cave on the left. This is the easiest one to spot but the hardest to describe, so just keep your eyes open. Head into the room and kill the Vex to finish the quest step.
Collecting Sol Divisive Parts
Next, you'll need to collect 120 Sol Divisive Parts from Vex. The best way to do this is to just run the new Vex Offensive activity since you'll be fighting Vex exclusively there and can collect tons of parts.
Alternatively, the Pyramidion strike will throw a ton of Vex at you. Or, if you intend to do the raid right away, you'll definitely face a lot of Vex in there. Collect your 120 parts and then head back to the Moon.
If you have trouble finding any of these locations, Redditor /u/ninth_reddit_account made a gif for each one that you can see here.
Buy Exotic Item
At the lectern, which will only be available if you progressed through the Shadowkeep campaign, now offers an exotic item for 30 Phantasmal Essence. Buying this item completes this step of the quest.
If you don't have enough Phantasmal Essence, you can find more by farming Nightmares. The Nightmares at Sorrow's Harbor just outside the Scarlet Keep spawn pretty constantly so that's the best place to farm up if you're short.