272668 divided by 21 
We're looking to find how many times 21 goes into 272668.

Step 1:
2 divided by 21 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 21

Advancing to step 2:
If we divide 27 by 21, we get 1 and a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 21 away from 27, we end up with 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 21

Advancing to step 3:
When dividing 62 by 21, we get 2 with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 42 from 62 to get 20.
Append the next digit (6) from the dividend to 20 and continue with: 206 / 21

Going ahead to step 4:
206 divided by 21 is 9 with a remainder of 17.
Use 9 as the next digit of our solution. 
Result so far: 129.0
Deduct 189 from 206 and we're left with 17.
Bring next digit (6) of the dividend behind the 17 and repeat the process: 176 / 21

Advancing to step 5:
When dividing 176 by 21, we get 8 with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 1298.0
If we subtract 168 from 176, we get 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 21

Let's proceed to step 6:
88 divided by 21 is 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 12984.0
Deduct 84 from 88 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
21 goes into 40 1 times with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 12984.1
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 8:
When dividing 190 by 21, we get 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 12984.19
Subtract 189 from 190 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 9:
If we divide 10 by 21, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 12984.19
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
21 goes into 100 4 times with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 12984.1904
Subtract 84 from 100 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
21 goes into 160 7 times with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 12984.19047
Subtract 147 from 160 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 12:
The number 21 fits into 130 6 times, leaving a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 12984.190476
Deduct 126 from 130 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 13:
21 goes into 40 1 times with a remainder of 19.
The next digit of our result is 1. 
Result so far: 12984.1904761
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 14:
21 can be fit into 190 9 times, resulting in a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 12984.19047619
Subtract 189 from 190 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 12984.19047619 with a remaining 1e-09.