How to divide $10100 \div 2$ with long division?

Question

How to divide $10100 \div 2$? I'm trying to divide 10100 by 2 with pen & paper and getting 550 as answer which is incorrect (**Right answer is 5050). Literally, I think I have forgot primary level math. Could you guys help me to solve this problem with proper step by step guideline? Thanks in advance!

Here I got a long division solution but not clear to me: Long Division Solution

Answer 1

The long division algorithm starts at the most significant digit of the dividend and works its way down. In this case since $1<2$ we start with $10$, divide by $2$ to get $5$ as the leading digit, then subtract $2\times 5$ from $10$ to get $0$, so the next digit is $0$, then $1<2$ again and repeat to get $5050$ in the end.

See here for an illustrated example.

Answer 2

Because writing this in comments results in loss of formatting:

   5050 <-- quotient
  -----
2)10100
  10
  --
    10
    10
    --
        <-- remainder