Found bones in the forest, unsure of how to clean them

So, my friend and I found this when walking their dog yesterday and I think it is cool as hell. 

I've been trying to figure out a way to clean/degrease it, but most people on the internet suggest I boil it or soak it in soap water for 2 weeks (I believe it's called maceration), to get the grime and fat off, but it can't fit in a pot and I don't have a big enough box for it to soak in.. And that process supposedly also smells a lot and I live in an apartment complex so if it smells for two weeks I think it might bother people. Maybe I will find a place to bury it so the microbes in the ground will eat the tissue?

Until i figure out a way to properly clean it it's just going to lay here. 

If anyone has ideas for how to clean it I'd love to hear it :)