We divide 757748 by 21
We want to divide 757748 by 21.

Moving on to step 1:
The number 21 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 21

Let's proceed to step 2:
21 goes into 75 3 times with a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 63 from 75, we get 12.
Fetch the next digit (7) from the dividend, attach it to 12 and continue: 127 / 21

On to step 3:
21 can be fit into 127 6 times, resulting in a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 36.0
The remainder is 1 after subtracting 126 from 127.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 21

On to step 4:
When dividing 17 by 21, we get 0 with a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 360.0
The remainder is 17 after subtracting 0 from 17.
Include the next digit (4) from the dividend after 17, then repeat: 174 / 21

Going ahead to step 5:
When dividing 174 by 21, we get 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 3608.0
If we subtract 168 from 174, we get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 21

Advancing to step 6:
21 goes into 68 3 times with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 36083.0
Subtracting 63 from 68 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.

Going ahead to step 7:
When dividing 50 by 21, we get 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 36083.2
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.

Step 8:
21 can be fit into 80 3 times, resulting in a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 36083.23
If we take 63 away from 80, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 9:
170 divided by 21 is 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 36083.238
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.

Going ahead to step 10:
21 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 36083.238
Subtract 0 from 20 to 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.

On to step 11:
If we divide 200 by 21, we get 9 and a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 36083.23809
The remainder is 11 after subtracting 189 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 12:
If we divide 110 by 21, we get 5 and a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 36083.238095
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.

On to step 13:
The number 21 fits into 50 2 times, leaving a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 36083.2380952
Subtracting 42 from 50 leaves us 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.

Going ahead to step 14:
21 can be fit into 80 3 times, resulting in a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 36083.23809523
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.

The final outcome is 36083.23809523, with a leftover of 1.7e-08.