Let's divide 727668 by 21
Our goal is to divide 727668 by 21.

Moving on to step 1:
When dividing 7 by 21, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 21

On to step 2:
If we divide 72 by 21, we get 3 and a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 63 from 72, we get 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 21

Step 3:
21 goes into 97 4 times with a remainder of 13.
Write down 4 as next digit of the result. 
Result so far: 34.0
The remainder is 13 after subtracting 84 from 97.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 21

Let's proceed to step 4:
136 divided by 21 is 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 346.0
Subtract 126 from 136 to get 10.
Fetch the next digit (6) from the dividend, attach it to 10 and continue: 106 / 21

On to step 5:
21 goes into 106 5 times with a remainder of 1.
The next digit of our result is 5. 
Result so far: 3465.0
If we subtract 105 from 106, we get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 21

Moving on to step 6:
If we divide 18 by 21, we get 0 and a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 34650.0
The remainder is 18 after subtracting 0 from 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 7:
When dividing 180 by 21, we get 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 34650.8
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.

Let's proceed to step 8:
If we divide 120 by 21, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 34650.85
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.

Step 9:
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: 34650.857
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.

On to step 10:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 34650.8571
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.

Step 11:
21 can be fit into 90 4 times, resulting in a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 34650.85714
Deduct 84 from 90 and we're left 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.

Moving on to step 12:
When dividing 60 by 21, we get 2 with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 34650.857142
If we take 42 away from 60, we end up with 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 13:
21 can be fit into 180 8 times, resulting in a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 34650.8571428
Subtract 168 from 180 to 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.

Moving on to step 14:
The number 21 fits into 120 5 times, leaving a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 34650.85714285
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The quotient of the division is 34650.85714285, and the remainder is 1.5e-08.