Please forgive me if this is already a post.

I'm trying to take down my rear subframe off my evo 3 and remove all the rust and replace every nut and bolt and bushing on there and I have no idea where to start. I'm taking off the exhaust and drive shaft but where should i start next? Ive never done this before so any help would be nice. Please, speak to me like I'm a third grader lol I'm more of a motor guy and know little about suspension