post existing website

I have a website that was constructed for me previously. It will be attached for reference. I would like to post this website on a webhosting service, info will be forwarded, but do not know how. i would like a worker to review the website that I have, confirm that it is okay for posting and post it for me. However, i need explicit, line by line, written instruction on how to do it myself in the future, as well.