We look at the division of 87088567 by 86 
The aim is to understand the frequency of 86 in 87088567.

Let's proceed to step 1:
86 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 86

Going ahead to step 2:
When dividing 87 by 86, we get 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 86 from 87 and we're left with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 86

Going ahead to step 3:
The number 86 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtract 0 from 10 to get 10.
Include the next digit (8) from the dividend after 10, then repeat: 108 / 86

Moving on to step 4:
86 can be fit into 108 1 times, resulting in a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 101.0
If we subtract 86 from 108, we get 22.
Take the next digit (8) from the dividend and append it to 22, then repeat: 228 / 86

Step 5:
228 divided by 86 is 2 with a remainder of 56.
Record the quotient 2 as the next digit in the result. 
Result so far: 1012.0
The remainder is 56 after subtracting 172 from 228.
Include the next digit (5) from the dividend after 56, then repeat: 565 / 86

Advancing to step 6:
86 goes into 565 6 times with a remainder of 49.
Use 6 as the next digit of our solution. 
Result so far: 10126.0
If we subtract 516 from 565, we get 49.
Append the next digit (6) from the dividend to 49 and continue with: 496 / 86

Going ahead to step 7:
If we divide 496 by 86, we get 5 and a remainder of 66.
The number 5 becomes the next digit in our result. 
Result so far: 101265.0
If we subtract 430 from 496, we get 66.
Bring next digit (7) of the dividend behind the 66 and repeat the process: 667 / 86

Step 8:
If we divide 667 by 86, we get 7 and a remainder of 65.
Use 7 as the next digit of our solution. 
Result so far: 1012657.0
Subtract 602 from 667 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 9:
If we divide 650 by 86, we get 7 and a remainder of 48.
Put 7 as the next digit of the answer. 
Result so far: 1012657.7
Subtracting 602 from 650 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 10:
480 divided by 86 is 5 with a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 1012657.75
Deduct 430 from 480 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 11:
500 divided by 86 is 5 with a remainder of 70.
The next digit of our result is 5. 
Result so far: 1012657.755
If we take 430 away from 500, we end up 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.

The quotient of the division is 1012657.755, and the remainder is 0.007.