We look at the division of 268235 by 72 
The aim is to understand the frequency of 72 in 268235.

Advancing to step 1:
The number 72 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 72

On to step 2:
26 divided by 72 is 0 with a remainder of 26.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 26 after subtracting 0 from 26.
Take the next digit (8) from the dividend and append it to 26, then repeat: 268 / 72

Going ahead to step 3:
When dividing 268 by 72, we get 3 with a remainder of 52.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 52 after subtracting 216 from 268.
Take the next digit (2) from the dividend and append it to 52, then repeat: 522 / 72

Step 4:
522 divided by 72 is 7 with a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
If we subtract 504 from 522, we get 18.
Fetch the next digit (3) from the dividend, attach it to 18 and continue: 183 / 72

Going ahead to step 5:
72 goes into 183 2 times with a remainder of 39.
Put 2 as the next digit of the answer. 
Result so far: 372.0
The remainder is 39 after subtracting 144 from 183.
Append the next digit (5) from the dividend to 39 and continue with: 395 / 72

Moving on to step 6:
72 can be fit into 395 5 times, resulting in a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 3725.0
The remainder is 35 after subtracting 360 from 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 7:
When dividing 350 by 72, we get 4 with a remainder of 62.
The next digit of our result is 4. 
Result so far: 3725.4
If we take 288 away from 350, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 8:
72 goes into 620 8 times with a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 3725.48
If we take 576 away from 620, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 9:
72 can be fit into 440 6 times, resulting in a remainder of 8.
The next digit of our result is 6. 
Result so far: 3725.486
Deduct 432 from 440 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 10:
72 goes into 80 1 times with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 3725.4861
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
80 divided by 72 is 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 3725.48611
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 3725.48611 with a remainder of 8e-06.