This size will do a very dirty shower a couple of times. Here are the steps I use: You need to make sure you use gloves. Use a small bottle with a single hole or a spray (harder on the hands to keep squirting) and start at the top. Do an area about 2 feet across all the way down: apply product then use a stiff bristle brush to spread. Allow to foam first if white. Rinse from the top several times and wipe dry with a towel. Make sure the section you do next is not really wet. It works better when tile is dry.
