Let's divide 126622 by 72
The aim is to understand the frequency of 72 in 126622.

Going ahead to step 1:
If we divide 1 by 72, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 72

Going ahead to step 2:
72 can be fit into 12 0 times, resulting in a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 72

Step 3:
126 divided by 72 is 1 with a remainder of 54.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 72 from 126 and we're left with 54.
Bring next digit (6) of the dividend behind the 54 and repeat the process: 546 / 72

On to step 4:
546 divided by 72 is 7 with a remainder of 42.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we take 504 away from 546, we end up with 42.
Take the next digit (2) from the dividend and append it to 42, then repeat: 422 / 72

On to step 5:
72 goes into 422 5 times with a remainder of 62.
Use 5 as the next digit of our solution. 
Result so far: 175.0
If we subtract 360 from 422, we get 62.
Include the next digit (2) from the dividend after 62, then repeat: 622 / 72

Advancing to step 6:
72 can be fit into 622 8 times, resulting in a remainder of 46.
Record the quotient 8 as the next digit in the result. 
Result so far: 1758.0
If we subtract 576 from 622, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 7:
When dividing 460 by 72, we get 6 with a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 1758.6
Subtracting 432 from 460 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 8:
When dividing 280 by 72, we get 3 with a remainder of 64.
The number 3 becomes the next digit in our result. 
Result so far: 1758.63
If we take 216 away from 280, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 9:
The number 72 fits into 640 8 times, leaving a remainder of 64.
The next digit of our result is 8. 
Result so far: 1758.638
Deduct 576 from 640 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 10:
The number 72 fits into 640 8 times, leaving a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 1758.6388
Subtract 576 from 640 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

After the division, we end up with 1758.6388 and a remainder of 0.00064.