Authors CurseForge

I'm planning on putting a little time in over the weekend on trying to get a quest dump from Wowhead but there's one thing troubling me... what's the format of the co-ordinates? I've got this as the first entry in my CartographerQuests.lua file:

["Dire Maul"] = {
[29919024] = {
["icon"] = "Quest",
["title"] = "Dreadsteed Spirit",
["quests"] = {
["Dreadsteed of Xoroth"] = 60,
},
["info"] = "Quests:\nDreadsteed of Xoroth",
},

Now that seems easy enough to generate from Wowhead except I have no idea how to get 29919024 - how does that number actually break down?