415851 ÷ 72 
The aim is to understand the frequency of 72 in 415851.

Let's proceed to step 1:
72 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 72

Advancing to step 2:
If we divide 41 by 72, we get 0 and a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 41, we get 41.
Include the next digit (5) from the dividend after 41, then repeat: 415 / 72

Going ahead to step 3:
If we divide 415 by 72, we get 5 and a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtracting 360 from 415 leaves us with 55.
Bring next digit (8) of the dividend behind the 55 and repeat the process: 558 / 72

Let's proceed to step 4:
72 goes into 558 7 times with a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 57.0
Subtract 504 from 558 to get 54.
Fetch the next digit (5) from the dividend, attach it to 54 and continue: 545 / 72

On to step 5:
72 can be fit into 545 7 times, resulting in a remainder of 41.
Put 7 as the next digit of the answer. 
Result so far: 577.0
Deduct 504 from 545 and we're left with 41.
Bring next digit (1) of the dividend behind the 41 and repeat the process: 411 / 72

Step 6:
The number 72 fits into 411 5 times, leaving a remainder of 51.
Write down 5 as next digit of the result. 
Result so far: 5775.0
The remainder is 51 after subtracting 360 from 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 7:
72 can be fit into 510 7 times, resulting in a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 5775.7
If we take 504 away from 510, we end up 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.

Let's proceed to step 8:
72 goes into 60 0 times with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 5775.7
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
When dividing 600 by 72, we get 8 with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 5775.708
Subtract 576 from 600 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 10:
If we divide 240 by 72, we get 3 and a remainder of 24.
Record the quotient 3 as the next digit in the result. 
Result so far: 5775.7083
If we take 216 away from 240, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 11:
If we divide 240 by 72, we get 3 and a remainder of 24.
The next digit of our result is 3. 
Result so far: 5775.70833
Deduct 216 from 240 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 5775.70833 with a remainder of 2.4e-05.