911982 ÷ 21 
Our goal is to divide 911982 by 21.

Moving on to step 1:
21 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 21

On to 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

On to step 3:
21 can be fit into 71 3 times, resulting in a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 43.0
The remainder is 8 after subtracting 63 from 71.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 21

Going ahead to step 4:
If we divide 89 by 21, we get 4 and a remainder of 5.
The next digit of our result is 4. 
Result so far: 434.0
Subtract 84 from 89 to get 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 21

Going ahead to step 5:
If we divide 58 by 21, we get 2 and a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 4342.0
The remainder is 16 after subtracting 42 from 58.
Take the next digit (2) from the dividend and append it to 16, then repeat: 162 / 21

Going ahead to step 6:
When dividing 162 by 21, we get 7 with a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 43427.0
If we take 147 away from 162, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
When dividing 150 by 21, we get 7 with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 43427.7
Deduct 147 from 150 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 8:
30 divided by 21 is 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 43427.71
If we subtract 21 from 30, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
21 goes into 90 4 times with a remainder of 6.
The next digit of our result is 4. 
Result so far: 43427.714
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 10:
The number 21 fits into 60 2 times, leaving a remainder of 18.
The next digit of our result is 2. 
Result so far: 43427.7142
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 11:
The number 21 fits into 180 8 times, leaving a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 43427.71428
Deduct 168 from 180 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 12:
21 can be fit into 120 5 times, resulting in a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 43427.714285
Subtract 105 from 120 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 13:
21 goes into 150 7 times with a remainder of 3.
The next digit of our result is 7. 
Result so far: 43427.7142857
If we subtract 147 from 150, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 14:
When dividing 30 by 21, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 43427.71428571
Subtract 21 from 30 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Our division results in 43427.71428571 with a remaining 9e-09.