623501 ÷ 72 
The aim is to understand the frequency of 72 in 623501.

On to step 1:
72 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 72

Step 2:
72 can be fit into 62 0 times, resulting in a remainder of 62.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 62 leaves us with 62.
Include the next digit (3) from the dividend after 62, then repeat: 623 / 72

Going ahead to step 3:
If we divide 623 by 72, we get 8 and a remainder of 47.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 47 after subtracting 576 from 623.
Grab the next digit (5) from the dividend, add it to 47, then carry on: 475 / 72

Moving on to step 4:
The number 72 fits into 475 6 times, leaving a remainder of 43.
The next digit of our result is 6. 
Result so far: 86.0
If we subtract 432 from 475, we get 43.
Include the next digit (0) from the dividend after 43, then repeat: 430 / 72

Step 5:
430 divided by 72 is 5 with a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 865.0
Subtracting 360 from 430 leaves us with 70.
Fetch the next digit (1) from the dividend, attach it to 70 and continue: 701 / 72

Let's proceed to step 6:
The number 72 fits into 701 9 times, leaving a remainder of 53.
Write down 9 as next digit of the result. 
Result so far: 8659.0
The remainder is 53 after subtracting 648 from 701.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 7:
The number 72 fits into 530 7 times, leaving a remainder of 26.
Record the quotient 7 as the next digit in the result. 
Result so far: 8659.7
Deduct 504 from 530 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 8:
72 goes into 260 3 times with a remainder of 44.
Put 3 as the next digit of the answer. 
Result so far: 8659.73
Subtract 216 from 260 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 9:
440 divided by 72 is 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 8659.736
Subtract 432 from 440 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 10:
72 goes into 80 1 times with a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 8659.7361
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
80 divided by 72 is 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 8659.73611
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 8659.73611 and a remainder of 8e-06.