We look at the division of 126106 by 72 
The aim is to understand the frequency of 72 in 126106.

Step 1:
1 divided by 72 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 72

Advancing to step 2:
The number 72 fits into 12 0 times, leaving a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Take the next digit (6) from the dividend and append it to 12, then repeat: 126 / 72

Advancing to step 3:
72 can be fit into 126 1 times, resulting in a remainder of 54.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 72 from 126 leaves us with 54.
Fetch the next digit (1) from the dividend, attach it to 54 and continue: 541 / 72

Moving on to step 4:
72 can be fit into 541 7 times, resulting in a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtract 504 from 541 to get 37.
Include the next digit (0) from the dividend after 37, then repeat: 370 / 72

On to step 5:
When dividing 370 by 72, we get 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 175.0
If we take 360 away from 370, we end up with 10.
Fetch the next digit (6) from the dividend, attach it to 10 and continue: 106 / 72

Moving on to step 6:
If we divide 106 by 72, we get 1 and a remainder of 34.
The next digit of our result is 1. 
Result so far: 1751.0
If we take 72 away from 106, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 7:
The number 72 fits into 340 4 times, leaving a remainder of 52.
The next digit of our result is 4. 
Result so far: 1751.4
The remainder is 52 after subtracting 288 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 8:
When dividing 520 by 72, we get 7 with a remainder of 16.
The number 7 becomes the next digit in our result. 
Result so far: 1751.47
The remainder is 16 after subtracting 504 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
If we divide 160 by 72, we get 2 and a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 1751.472
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 10:
72 can be fit into 160 2 times, resulting in a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 1751.4722
If we subtract 144 from 160, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 1751.4722, and the remainder is 0.00016.