1. Please click on the below link
https://steelbrick2.force.com/apex/installPremium
2. Navigate to the bottom "Package Installation Links" & Select click on the Salesforce CPQ latest version of Installation Link.
3. The developer version is production and enter the login credentials for successful login.
Note : If this is not working,Try to login in incognito window and copy the url and enter the link into incognito window and login.
For developer version can install for all the users.That will change in real time scenario.
5.While installing if it takes time it will send an email notification for registered id after installation.
6.After successful installation ,Navigate to the Setup --> Installed Packages --> Salesforce CPQ
