812156 ÷ 72 
The aim is to understand the frequency of 72 in 812156.

Moving on to step 1:
When dividing 8 by 72, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 72

Moving on to step 2:
72 can be fit into 81 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
If we take 72 away from 81, we end up with 9.
Grab the next digit (2) from the dividend, add it to 9, then carry on: 92 / 72

Advancing to step 3:
92 divided by 72 is 1 with a remainder of 20.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 20 after subtracting 72 from 92.
Bring next digit (1) of the dividend behind the 20 and repeat the process: 201 / 72

Advancing to step 4:
The number 72 fits into 201 2 times, leaving a remainder of 57.
Put 2 as the next digit of the answer. 
Result so far: 112.0
If we subtract 144 from 201, we get 57.
Take the next digit (5) from the dividend and append it to 57, then repeat: 575 / 72

Let's proceed to step 5:
72 can be fit into 575 7 times, resulting in a remainder of 71.
The next digit of our result is 7. 
Result so far: 1127.0
If we subtract 504 from 575, we get 71.
Fetch the next digit (6) from the dividend, attach it to 71 and continue: 716 / 72

Let's proceed to step 6:
72 can be fit into 716 9 times, resulting in a remainder of 68.
The next digit of our result is 9. 
Result so far: 11279.0
If we subtract 648 from 716, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 7:
The number 72 fits into 680 9 times, leaving a remainder of 32.
Use 9 as the next digit of our solution. 
Result so far: 11279.9
Subtracting 648 from 680 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 8:
The number 72 fits into 320 4 times, leaving a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 11279.94
The remainder is 32 after subtracting 288 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 9:
When dividing 320 by 72, we get 4 with a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 11279.944
If we take 288 away from 320, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The quotient of the division is 11279.944, and the remainder is 0.0032.