Let's divide 21457988 by 272
The aim is to understand the frequency of 272 in 21457988.

On to step 1:
If we divide 2 by 272, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 272

Going ahead to step 2:
272 goes into 21 0 times with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Fetch the next digit (4) from the dividend, attach it to 21 and continue: 214 / 272

Advancing to step 3:
If we divide 214 by 272, we get 0 and a remainder of 214.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 214 leaves us with 214.
Bring next digit (5) of the dividend behind the 214 and repeat the process: 2145 / 272

Let's proceed to step 4:
272 can be fit into 2145 7 times, resulting in a remainder of 241.
The next digit of our result is 7. 
Result so far: 7.0
If we take 1904 away from 2145, we end up with 241.
Include the next digit (7) from the dividend after 241, then repeat: 2417 / 272

Going ahead to step 5:
If we divide 2417 by 272, we get 8 and a remainder of 241.
Record the quotient 8 as the next digit in the result. 
Result so far: 78.0
Subtracting 2176 from 2417 leaves us with 241.
Take the next digit (9) from the dividend and append it to 241, then repeat: 2419 / 272

On to step 6:
272 can be fit into 2419 8 times, resulting in a remainder of 243.
The number 8 becomes the next digit in our result. 
Result so far: 788.0
If we subtract 2176 from 2419, we get 243.
Grab the next digit (8) from the dividend, add it to 243, then carry on: 2438 / 272

Step 7:
The number 272 fits into 2438 8 times, leaving a remainder of 262.
Use 8 as the next digit of our solution. 
Result so far: 7888.0
Subtract 2176 from 2438 to get 262.
Grab the next digit (8) from the dividend, add it to 262, then carry on: 2628 / 272

Advancing to step 8:
The number 272 fits into 2628 9 times, leaving a remainder of 180.
Write down 9 as next digit of the result. 
Result so far: 78889.0
Deduct 2448 from 2628 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 9:
1800 divided by 272 is 6 with a remainder of 168.
Use 6 as the next digit of our solution. 
Result so far: 78889.6
Subtract 1632 from 1800 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 10:
The number 272 fits into 1680 6 times, leaving a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 78889.66
Deduct 1632 from 1680 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

In conclusion, the division gives 78889.66 with a balance of 0.048.