We divide 911672 by 21
Let's see how many times 21 fits into 911672.

On to step 1:
21 can be fit into 9 0 times, resulting in 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
Deduct 84 from 91 and we're left with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 21

Step 3:
21 goes into 71 3 times with a remainder of 8.
The next digit of our result is 3. 
Result so far: 43.0
Subtracting 63 from 71 leaves us with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 21

Moving on to step 4:
If we divide 86 by 21, we get 4 and a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 434.0
If we subtract 84 from 86, we get 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 21

Going ahead to step 5:
21 goes into 27 1 times with a remainder of 6.
The next digit of our result is 1. 
Result so far: 4341.0
If we take 21 away from 27, we end up with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 21

Advancing to step 6:
When dividing 62 by 21, we get 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 43412.0
If we subtract 42 from 62, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 7:
21 can be fit into 200 9 times, resulting in a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 43412.9
Subtracting 189 from 200 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 8:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 43412.95
Deduct 105 from 110 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
21 can be fit into 50 2 times, resulting in a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 43412.952
If we take 42 away from 50, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
21 can be fit into 80 3 times, resulting in a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 43412.9523
Subtract 63 from 80 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 11:
The number 21 fits into 170 8 times, leaving a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 43412.95238
If we subtract 168 from 170, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 12:
If we divide 20 by 21, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 43412.95238
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
200 divided by 21 is 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 43412.9523809
Subtract 189 from 200 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 14:
21 goes into 110 5 times with a remainder of 5.
The next digit of our result is 5. 
Result so far: 43412.95238095
Deduct 105 from 110 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 43412.95238095, with a leftover of 5e-09.