how to use the 12 digit universal icloud back up password

I was sent my 12 digit universal backup icloud and safari password to my apple id email

rf7-dU3-er2-BTw is an example!

how do I use it to recover my icloud password account ???and is my icloud account email and password different than my apple id account email and password ? I forgot my icloud password so how do I use this universal backup to get into my icloud account?????????????

dr. cook

thanks