I think you have to explain a bit more detailed what you problem is, and how far you have come in your attempt.
If you are a completely new to web development, then I guess you wouldn't be able to do the web application in the first place, but here is the basic steps of deployment (written as if you have no clue)...
1. Get a domain (if you are not already in control of such).
2. Get a web hotel (to which the domain points).
3. Get an FTP program (upload program).
4. Establish connection to the web hotel.
5. Upload the web folder on your working machine (some files such as source code for code-behind etc. need not be uploaded).
Your information was very limited so you the above list is very course grained.
Hope this helps,