I don't have a tutorial handy, but for a Moon to Earth flight I highly recommend you use IMFD. It's quite a complicated tool to use, but it really is very capable. Like most of Orbiter, the learning curve is .... just about straight up (no pun intended). There's a good package on orbit-hangar "IMFD full manual" that has an extensive manual with a series of tutorial flights included. You will need some addons though, which are identified in the download.
Orbiter doesn't have much in the way of fancy modern graphics (but for what it is it's "good enough" in my opinion, and there are some very detailed spacecraft available), but there's a real sense of accomplishment when you make your first docking with a space station or plan a flight to another planet - and actually get there! It's physics are based on real orbital mechanics principals, and you can really learn a lot. I've spent a lot of time reading various manuals, web sites, etc. to try to understand what's all going on in the sim and it's honestly almost overwhelming at times. I don't play it all the time, but I realized a couple of weeks ago it might be the ONLY sim I've played at all in the last year.