911841 divided by 21 
We want to divide 911841 by 21.

Step 1:
The number 21 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 21

Step 2:
21 can be fit into 91 4 times, resulting in a remainder of 7.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 84 from 91 to get 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 21

Going ahead to step 3:
21 goes into 71 3 times with a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
Subtracting 63 from 71 leaves us with 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 21

Moving on to step 4:
21 goes into 88 4 times with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 434.0
Deduct 84 from 88 and we're left with 4.
Append the next digit (4) from the dividend to 4 and continue with: 44 / 21

Going ahead to step 5:
21 goes into 44 2 times with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 4342.0
Subtract 42 from 44 to get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 21

Moving on to step 6:
21 goes into 21 1 times with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 43421.0
Deduct 21 from 21 and we're left 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.

Step 7:
The number 21 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 43421.0
If we subtract 0 from 0, 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 8:
21 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 43421.0
If we take 0 away from 0, we end up 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.

After the division, we end up with 43421.0 and a remainder of 0.0.