Hosting your site
The simplest way is to let me do that for you. I've already paid for it, that's why I can offer such a great deal! At the moment I am using SiteGround which is a very reputable hosting company. I use TSOhost to register domains.
Remember WordPress powers 40% of all the websites out there on the internet. However, it is not the only option - especially if your site is a very simple one which does not have 'dynamic' elements.