We're dividing 20913 by 2 
We want to divide 20913 by 2.

Moving on to step 1:
If we divide 2 by 2, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 2 from 2 and we're left with 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 2

On to step 2:
When dividing 0 by 2, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 0, we end up with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 2

Going ahead to step 3:
2 goes into 9 4 times with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 104.0
The remainder is 1 after subtracting 8 from 9.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 2

Step 4:
When dividing 11 by 2, we get 5 with a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 1045.0
Subtracting 10 from 11 leaves us with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 2

On to step 5:
2 goes into 13 6 times with a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 10456.0
Deduct 12 from 13 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 6:
The number 2 fits into 10 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 10456.5
If we subtract 10 from 10, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 7:
0 divided by 2 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 10456.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 10456.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 10456.5, with a leftover of 0.0.