We're dividing 748707 by 21 
Let's see how many times 21 fits into 748707.

Going ahead to step 1:
When dividing 7 by 21, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 21

Advancing to step 2:
21 can be fit into 74 3 times, resulting in a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 63 from 74 to get 11.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 21

On to step 3:
21 goes into 118 5 times with a remainder of 13.
Use 5 as the next digit of our solution. 
Result so far: 35.0
The remainder is 13 after subtracting 105 from 118.
Grab the next digit (7) from the dividend, add it to 13, then carry on: 137 / 21

Moving on to step 4:
The number 21 fits into 137 6 times, leaving a remainder of 11.
The number 6 becomes the next digit in our result. 
Result so far: 356.0
If we take 126 away from 137, we end up with 11.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 21

Advancing to step 5:
21 goes into 110 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 3565.0
If we take 105 away from 110, we end up with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 21

Step 6:
57 divided by 21 is 2 with a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 35652.0
The remainder is 15 after subtracting 42 from 57.
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 7:
150 divided by 21 is 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 35652.7
Subtracting 147 from 150 leaves us 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.

Step 8:
21 goes into 30 1 times with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 35652.71
The remainder is 9 after subtracting 21 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 9:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 35652.714
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 10:
21 can be fit into 60 2 times, resulting in a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 35652.7142
Subtract 42 from 60 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 11:
If we divide 180 by 21, we get 8 and a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 35652.71428
If we subtract 168 from 180, we get 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:
When dividing 120 by 21, we get 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 35652.714285
If we subtract 105 from 120, we 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.

Advancing to step 13:
If we divide 150 by 21, we get 7 and a remainder of 3.
The next digit of our result is 7. 
Result so far: 35652.7142857
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 14:
If we divide 30 by 21, we get 1 and a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 35652.71428571
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.

The quotient of the division is 35652.71428571, and the remainder is 9e-09.