Let's divide 931972 by 21
We want to divide 931972 by 21.

Moving on to step 1:
When dividing 9 by 21, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (3) from the dividend and append it to 9, then repeat: 93 / 21

Moving on to step 2:
21 can be fit into 93 4 times, resulting in a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 84 from 93 and we're left with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 21

Going ahead to step 3:
The number 21 fits into 91 4 times, leaving a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 44.0
The remainder is 7 after subtracting 84 from 91.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 21

Advancing to step 4:
21 goes into 79 3 times with a remainder of 16.
The next digit of our result is 3. 
Result so far: 443.0
If we take 63 away from 79, we end up with 16.
Append the next digit (7) from the dividend to 16 and continue with: 167 / 21

Going ahead to step 5:
If we divide 167 by 21, we get 7 and a remainder of 20.
Write down 7 as next digit of the result. 
Result so far: 4437.0
Subtracting 147 from 167 leaves us with 20.
Append the next digit (2) from the dividend to 20 and continue with: 202 / 21

Moving on to step 6:
21 goes into 202 9 times with a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 44379.0
If we take 189 away from 202, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
130 divided by 21 is 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 44379.6
If we subtract 126 from 130, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
21 can be fit into 40 1 times, resulting in a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 44379.61
Subtract 21 from 40 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 9:
21 goes into 190 9 times with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 44379.619
The remainder is 1 after subtracting 189 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 10:
The number 21 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 44379.619
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 11:
21 can be fit into 100 4 times, resulting in a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 44379.61904
Subtract 84 from 100 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 12:
When dividing 160 by 21, we get 7 with a remainder of 13.
The next digit of our result is 7. 
Result so far: 44379.619047
The remainder is 13 after subtracting 147 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 13:
21 can be fit into 130 6 times, resulting in a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 44379.6190476
Deduct 126 from 130 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 14:
When dividing 40 by 21, we get 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 44379.61904761
Subtract 21 from 40 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Our division results in 44379.61904761 with a remaining 1.9e-08.