I have this “http://1xx.xx.xx.xx/wp-admin/install.php” when I copy paste the ip number of my droplet.

I have an e-mail of ip adress, username and pass for my web site. Ido not have any domain, but I will buy, and it is my first time with linux and wordpress. I have done one step install for wordpress and have a droplet, actually I am a total beginner and I do not know what do I have to do a simple working personal wordpress blog. I fyou can help me I would appreciate it:)