There is an entire forum on this site full of tutorials. You can also click on the Blog on the top of the page and click to see more tutorials. RPG Maker has a tutorial on how to use it built in.
You can also go to YouTube and search for RPG Maker tutorial and find at least dozens, if not hundreds of videos already.
To play your game on computer does not require a tutorial, you click File -> Export.
And there are already tutorials both on these forums, other sites, and YouTube on how to export your game and convert it to a format for iPhone or Android (those two things are different, there's no such thing as "phone file" that works for everyone).