So let's use it in an analogy to make sure I understand it. GoDaddy.com gave you your "stake of land," and Hostinger gave you the "construction materials," while you built your "house" on your "land" with the "materials" Hostinger gave you. Confusing? I think so. Makes sense? Maybe.
I used godaddy to buy the domain I used notepad ++ to write the html I used hostinger to do web hosting --- I make account on hostinger - I select to use my domain from godaddy I go to godaddy - I change settings (name servers) to hostinger's servers I zip the folder with my website files (made with notepad ++) I go to hostinger website uploader I upload the zipped folder -I test the url - if works (i'm good) -If not I go to godaddy ... edit domain settings to the right url. ps) it takes 2 days for hostinger to allow full view of your content (aka website)
So, what you do is exactly what I do, but with a different host. Or maybe I do what you do, but with a different host.