Unzip quickstart on local machine, upload it to hosting company server (via ftp, if you don't know to which folder, ask hosting company support), create database with use of hosting company panel (again, if you don't know how, ask hosting company support), access uploaded files wia www (for example
www.yourdomain.com), run the installation process - it will ask for database info (host, user, password, databasename). After that all should work fine.