250159 ÷ 72 
The aim is to understand the frequency of 72 in 250159.

On to step 1:
If we divide 2 by 72, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 72

Moving on to step 2:
When dividing 25 by 72, we get 0 with a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Append the next digit (0) from the dividend to 25 and continue with: 250 / 72

Step 3:
72 can be fit into 250 3 times, resulting in a remainder of 34.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 34 after subtracting 216 from 250.
Include the next digit (1) from the dividend after 34, then repeat: 341 / 72

Moving on to step 4:
341 divided by 72 is 4 with a remainder of 53.
Write down 4 as next digit of the result. 
Result so far: 34.0
Subtract 288 from 341 to get 53.
Append the next digit (5) from the dividend to 53 and continue with: 535 / 72

Advancing to step 5:
If we divide 535 by 72, we get 7 and a remainder of 31.
Record the quotient 7 as the next digit in the result. 
Result so far: 347.0
If we subtract 504 from 535, we get 31.
Bring next digit (9) of the dividend behind the 31 and repeat the process: 319 / 72

Step 6:
If we divide 319 by 72, we get 4 and a remainder of 31.
Write down 4 as next digit of the result. 
Result so far: 3474.0
Deduct 288 from 319 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 7:
If we divide 310 by 72, we get 4 and a remainder of 22.
The number 4 becomes the next digit in our result. 
Result so far: 3474.4
Subtract 288 from 310 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 8:
220 divided by 72 is 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 3474.43
If we subtract 216 from 220, we get 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 9:
40 divided by 72 is 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 3474.43
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
72 goes into 400 5 times with a remainder of 40.
The next digit of our result is 5. 
Result so far: 3474.4305
Subtract 360 from 400 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
When dividing 400 by 72, we get 5 with a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 3474.43055
If we subtract 360 from 400, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 3474.43055 with a remaining 4e-05.