We look at the division of 85702 by 87 
The aim is to understand the frequency of 87 in 85702.

Let's proceed to step 1:
87 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 87

Going ahead to step 2:
The number 87 fits into 85 0 times, leaving a remainder of 85.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Grab the next digit (7) from the dividend, add it to 85, then carry on: 857 / 87

Going ahead to step 3:
The number 87 fits into 857 9 times, leaving a remainder of 74.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 783 from 857, we get 74.
Include the next digit (0) from the dividend after 74, then repeat: 740 / 87

Let's proceed to step 4:
If we divide 740 by 87, we get 8 and a remainder of 44.
The next digit of our result is 8. 
Result so far: 98.0
Subtract 696 from 740 to get 44.
Bring next digit (2) of the dividend behind the 44 and repeat the process: 442 / 87

Moving on to step 5:
442 divided by 87 is 5 with a remainder of 7.
The next digit of our result is 5. 
Result so far: 985.0
The remainder is 7 after subtracting 435 from 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 6:
70 divided by 87 is 0 with a remainder of 70.
The next digit of our result is 0. 
Result so far: 985.0
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 7:
When dividing 700 by 87, we get 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 985.08
If we take 696 away from 700, we end up 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.

On to step 8:
40 divided by 87 is 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 985.08
Subtract 0 from 40 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.

Going ahead to step 9:
87 can be fit into 400 4 times, resulting in a remainder of 52.
Put 4 as the next digit of the answer. 
Result so far: 985.0804
If we take 348 away from 400, we end up 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.

Let's proceed to step 10:
If we divide 520 by 87, we get 5 and a remainder of 85.
The next digit of our result is 5. 
Result so far: 985.08045
The remainder is 85 after subtracting 435 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 11:
850 divided by 87 is 9 with a remainder of 67.
Write down 9 as next digit of the result. 
Result so far: 985.080459
Subtracting 783 from 850 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 12:
670 divided by 87 is 7 with a remainder of 61.
The next digit of our result is 7. 
Result so far: 985.0804597
If we subtract 609 from 670, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 13:
The number 87 fits into 610 7 times, leaving a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 985.08045977
The remainder is 1 after subtracting 609 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 985.08045977 with a remainder of 1e-09.