We look at the division of 974264 by 21 
Let's see how many times 21 fits into 974264.

Step 1:
21 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 21

Advancing to step 2:
97 divided by 21 is 4 with a remainder of 13.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 84 away from 97, we end up with 13.
Take the next digit (4) from the dividend and append it to 13, then repeat: 134 / 21

Advancing to step 3:
If we divide 134 by 21, we get 6 and a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 46.0
Deduct 126 from 134 and we're left with 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 21

On to step 4:
82 divided by 21 is 3 with a remainder of 19.
Put 3 as the next digit of the answer. 
Result so far: 463.0
Subtract 63 from 82 to get 19.
Take the next digit (6) from the dividend and append it to 19, then repeat: 196 / 21

Going ahead to step 5:
If we divide 196 by 21, we get 9 and a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 4639.0
The remainder is 7 after subtracting 189 from 196.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 21

Going ahead to step 6:
The number 21 fits into 74 3 times, leaving a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 46393.0
Deduct 63 from 74 and we're left 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 7:
When dividing 110 by 21, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 46393.5
If we take 105 away from 110, we end up 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.

Advancing to step 8:
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: 46393.52
The remainder is 8 after subtracting 42 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
21 goes into 80 3 times with a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 46393.523
If we subtract 63 from 80, we 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.

On to step 10:
170 divided by 21 is 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 46393.5238
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.

Advancing to step 11:
21 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 46393.5238
Subtracting 0 from 20 leaves us 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.

On to step 12:
When dividing 200 by 21, we get 9 with a remainder of 11.
The next digit of our result is 9. 
Result so far: 46393.523809
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.

Advancing to step 13:
When dividing 110 by 21, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 46393.5238095
Subtracting 105 from 110 leaves us 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.

Advancing to step 14:
When dividing 50 by 21, we get 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 46393.52380952
Deduct 42 from 50 and we're left 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.

After the division, we end up with 46393.52380952 and a remainder of 8e-09.