628522 divided by 72 
The aim is to understand the frequency of 72 in 628522.

Advancing to step 1:
72 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 72

Moving on to step 2:
The number 72 fits into 62 0 times, leaving a remainder of 62.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 62 to get 62.
Include the next digit (8) from the dividend after 62, then repeat: 628 / 72

Advancing to step 3:
72 can be fit into 628 8 times, resulting in a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 52 after subtracting 576 from 628.
Append the next digit (5) from the dividend to 52 and continue with: 525 / 72

Let's proceed to step 4:
When dividing 525 by 72, we get 7 with a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 87.0
Subtracting 504 from 525 leaves us with 21.
Bring next digit (2) of the dividend behind the 21 and repeat the process: 212 / 72

Moving on to step 5:
If we divide 212 by 72, we get 2 and a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 872.0
Subtracting 144 from 212 leaves us with 68.
Fetch the next digit (2) from the dividend, attach it to 68 and continue: 682 / 72

Let's proceed to step 6:
The number 72 fits into 682 9 times, leaving a remainder of 34.
Write down 9 as next digit of the result. 
Result so far: 8729.0
Subtracting 648 from 682 leaves us 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.

Let's proceed to step 7:
When dividing 340 by 72, we get 4 with a remainder of 52.
The next digit of our result is 4. 
Result so far: 8729.4
Subtracting 288 from 340 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 8:
The number 72 fits into 520 7 times, leaving a remainder of 16.
Use 7 as the next digit of our solution. 
Result so far: 8729.47
Subtract 504 from 520 to 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.

Step 9:
When dividing 160 by 72, we get 2 with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 8729.472
Subtract 144 from 160 to 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.

Moving on to step 10:
When dividing 160 by 72, we get 2 with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 8729.4722
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 8729.4722, with a leftover of 0.00016.