Creating a facebook page isn't a very difficult task, it's process is almost the same as opening a personal Facebook account. There are two ways to approach this task, both of which will be explained below.
To open a Facebook page, all you need to do is visit Facebook's homepage. In some cases, you might land on a page which will ask you to signin, create a Facebook account or a business account. If that isn't the case, then you'll need to add /business in the address bar of the Facebook homepage. When the page comes up with your intended option, complete the fields and follow the instructions to finish the process.
Am assuming you already have a Facebook account, because the second approach will require you signin to your account before creating a page. After you've singed in to your Facebook account, search for create page from the options on the side menu of your homepage. Once you locate and click on it, just follow the instructions by filling all relevant fields. There you have it. You now own a Facebook page.
Note: when opening a Facebook page, you need to be decisive on the name of the page, because changing a page name from the original takes a bit of a process and requires review, sometimes Facebook can decline a name change on a page. Also, a Facebook page is specifically designed for business purposes, hence it's operations and runings differs from a regular account. It often cost money to make reachs, engagements and meet a certain high number of intended audience.