If you think about it, it might work using your hands. Count to 10 using your fingers, then hold up a thumb to represent 10, thumb and a finger to represent 100, etc. etc. Maybe that's how the Chinese came up with the counting system for Chinese, Sino-Japanese and Sino-Korean numbers.
I'm not getting it. Counting to ten on your fingers is already all your fingers (unless you're treating your fingers as binary digits or something), nor am I following how adding fingers for each power of ten results in the next "level" of number being powers of ten thousand.