We divide 82520 by 77
The aim is to understand the frequency of 77 in 82520.

Let's proceed to step 1:
8 divided by 77 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 77

Going ahead to step 2:
When dividing 82 by 77, we get 1 with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 77 away from 82, we end up with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 77

Step 3:
77 can be fit into 55 0 times, resulting in a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 55 leaves us with 55.
Include the next digit (2) from the dividend after 55, then repeat: 552 / 77

Let's proceed to step 4:
77 can be fit into 552 7 times, resulting in a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 107.0
Subtracting 539 from 552 leaves us with 13.
Bring next digit (0) of the dividend behind the 13 and repeat the process: 130 / 77

Going ahead to step 5:
77 can be fit into 130 1 times, resulting in a remainder of 53.
The next digit of our result is 1. 
Result so far: 1071.0
If we take 77 away from 130, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 6:
77 can be fit into 530 6 times, resulting in a remainder of 68.
Write down 6 as next digit of the result. 
Result so far: 1071.6
Subtracting 462 from 530 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 7:
When dividing 680 by 77, we get 8 with a remainder of 64.
Record the quotient 8 as the next digit in the result. 
Result so far: 1071.68
Subtract 616 from 680 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 8:
When dividing 640 by 77, we get 8 with a remainder of 24.
The next digit of our result is 8. 
Result so far: 1071.688
The remainder is 24 after subtracting 616 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 1071.688 with a remainder of 0.0024.