We divide 525998 by 72
The aim is to understand the frequency of 72 in 525998.

Moving on to step 1:
5 divided by 72 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 72

Going ahead to step 2:
When dividing 52 by 72, we get 0 with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 52 and we're left with 52.
Grab the next digit (5) from the dividend, add it to 52, then carry on: 525 / 72

Let's proceed to step 3:
If we divide 525 by 72, we get 7 and a remainder of 21.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 504 from 525, we get 21.
Fetch the next digit (9) from the dividend, attach it to 21 and continue: 219 / 72

Step 4:
72 can be fit into 219 3 times, resulting in a remainder of 3.
The next digit of our result is 3. 
Result so far: 73.0
If we take 216 away from 219, we end up with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 72

Going ahead to step 5:
The number 72 fits into 39 0 times, leaving a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 730.0
If we subtract 0 from 39, we get 39.
Include the next digit (8) from the dividend after 39, then repeat: 398 / 72

Let's proceed to step 6:
72 goes into 398 5 times with a remainder of 38.
The number 5 becomes the next digit in our result. 
Result so far: 7305.0
Subtract 360 from 398 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 7:
72 can be fit into 380 5 times, resulting in a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 7305.5
If we take 360 away from 380, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 8:
When dividing 200 by 72, we get 2 with a remainder of 56.
Write down 2 as next digit of the result. 
Result so far: 7305.52
If we subtract 144 from 200, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 9:
The number 72 fits into 560 7 times, leaving a remainder of 56.
Use 7 as the next digit of our solution. 
Result so far: 7305.527
If we take 504 away from 560, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 10:
72 can be fit into 560 7 times, resulting in a remainder of 56.
Put 7 as the next digit of the answer. 
Result so far: 7305.5277
The remainder is 56 after subtracting 504 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final result is 7305.5277 with a remainder of 0.00056.