We look at the division of 52710 by 81 
The aim is to understand the frequency of 81 in 52710.

Let's proceed to step 1:
81 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 81

Advancing to step 2:
When dividing 52 by 81, we get 0 with a remainder of 52.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 52 to get 52.
Fetch the next digit (7) from the dividend, attach it to 52 and continue: 527 / 81

Step 3:
527 divided by 81 is 6 with a remainder of 41.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we take 486 away from 527, we end up with 41.
Append the next digit (1) from the dividend to 41 and continue with: 411 / 81

Step 4:
The number 81 fits into 411 5 times, leaving a remainder of 6.
The next digit of our result is 5. 
Result so far: 65.0
If we take 405 away from 411, we end up with 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 81

Step 5:
If we divide 60 by 81, we get 0 and a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 650.0
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 6:
The number 81 fits into 600 7 times, leaving a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 650.7
Subtract 567 from 600 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 7:
The number 81 fits into 330 4 times, leaving a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 650.74
Subtract 324 from 330 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
If we divide 60 by 81, we get 0 and a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 650.74
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
The number 81 fits into 600 7 times, leaving a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 650.7407
The remainder is 33 after subtracting 567 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 10:
330 divided by 81 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 650.74074
Subtracting 324 from 330 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 11:
81 can be fit into 60 0 times, resulting in a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 650.74074
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 12:
81 goes into 600 7 times with a remainder of 33.
Put 7 as the next digit of the answer. 
Result so far: 650.7407407
If we take 567 away from 600, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 13:
When dividing 330 by 81, we get 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 650.74074074
If we take 324 away from 330, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 650.74074074 with a remainder of 6e-09.