SmartFoxServer or any multiplayer system installation

Hello Unity folks, I'm developing a racing game, and I would like to take it to the next level. I would like to learn how to setup a multiplayer platform for my game where people from all over the place just spawn in and join the game; I think I'm in need of some coding and server space (that's pretty much all i know so far). I've heard about SmartFoxServer but it is a little bit unclear to me how it works. I would like for anyone to show me how this works, and in return I can share some coding or some bits and pieces from my game that they would like to get, and also, I can offer to make a detailed video about it to make the process easier for others. Thank you for your time in advance, and i'm really interested into working with you soon.