We look at the division of 597388 by 72 
The aim is to understand the frequency of 72 in 597388.

Advancing to step 1:
5 divided by 72 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 72

Step 2:
If we divide 59 by 72, we get 0 and a remainder of 59.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 59 and we're left with 59.
Fetch the next digit (7) from the dividend, attach it to 59 and continue: 597 / 72

Going ahead to step 3:
When dividing 597 by 72, we get 8 with a remainder of 21.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtract 576 from 597 to get 21.
Append the next digit (3) from the dividend to 21 and continue with: 213 / 72

Step 4:
When dividing 213 by 72, we get 2 with a remainder of 69.
Record the quotient 2 as the next digit in the result. 
Result so far: 82.0
Subtracting 144 from 213 leaves us with 69.
Append the next digit (8) from the dividend to 69 and continue with: 698 / 72

Moving on to step 5:
The number 72 fits into 698 9 times, leaving a remainder of 50.
Put 9 as the next digit of the answer. 
Result so far: 829.0
Subtract 648 from 698 to get 50.
Grab the next digit (8) from the dividend, add it to 50, then carry on: 508 / 72

Advancing to step 6:
The number 72 fits into 508 7 times, leaving a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 8297.0
Subtracting 504 from 508 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 7:
72 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 8297.0
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 8:
The number 72 fits into 400 5 times, leaving a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 8297.05
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
If we divide 400 by 72, we get 5 and a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 8297.055
Subtract 360 from 400 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

In conclusion, the division gives 8297.055 with a balance of 0.004.