Breaking down a binary number into 4 digits?

I need to break down a binary number into 4 decimal digits using assemb开发者_运维百科ly.

For example, break down 0010 0110 1001 0010 which is 9874 into '9' '8' '7' '4' and show each on a 7-segment display. I got that display part, I just don't understand the logic/process of breaking it down.

Can anyone help please?

Thanks!

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divide by 10, capturing the remainder. (modulus operation). Push the remainder onto a stack or other suitable structure. Repeat until the quotient is zero. The remainders that you pushed are the digit values.