314772 divided by 21 
Let's see how many times 21 fits into 314772.

Going ahead to step 1:
21 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 21

Step 2:
The number 21 fits into 31 1 times, leaving a remainder of 10.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 21 from 31 leaves us with 10.
Grab the next digit (4) from the dividend, add it to 10, then carry on: 104 / 21

On to step 3:
21 can be fit into 104 4 times, resulting in a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we subtract 84 from 104, we get 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 21

Moving on to step 4:
If we divide 207 by 21, we get 9 and a remainder of 18.
Record the quotient 9 as the next digit in the result. 
Result so far: 149.0
Subtracting 189 from 207 leaves us with 18.
Include the next digit (7) from the dividend after 18, then repeat: 187 / 21

Going ahead to step 5:
187 divided by 21 is 8 with a remainder of 19.
Write down 8 as next digit of the result. 
Result so far: 1498.0
The remainder is 19 after subtracting 168 from 187.
Fetch the next digit (2) from the dividend, attach it to 19 and continue: 192 / 21

Moving on to step 6:
192 divided by 21 is 9 with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 14989.0
Deduct 189 from 192 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.

Advancing to step 7:
30 divided by 21 is 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 14989.1
If we take 21 away from 30, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 8:
21 goes into 90 4 times with a remainder of 6.
The next digit of our result is 4. 
Result so far: 14989.14
The remainder is 6 after subtracting 84 from 90.
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 9:
21 goes into 60 2 times with a remainder of 18.
The next digit of our result is 2. 
Result so far: 14989.142
If we subtract 42 from 60, we 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.

On to step 10:
The number 21 fits into 180 8 times, leaving a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 14989.1428
If we take 168 away from 180, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 11:
When dividing 120 by 21, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 14989.14285
If we take 105 away from 120, we end up with 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 12:
When dividing 150 by 21, we get 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 14989.142857
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 13:
When dividing 30 by 21, we get 1 with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 14989.1428571
Subtract 21 from 30 to 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.

On to step 14:
The number 21 fits into 90 4 times, leaving a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 14989.14285714
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.

After the division, we end up with 14989.14285714 and a remainder of 6e-09.