We look at the division of 165589 by 86 
The aim is to understand the frequency of 86 in 165589.

Advancing to step 1:
86 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 86

Advancing to step 2:
86 can be fit into 16 0 times, resulting in a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Append the next digit (5) from the dividend to 16 and continue with: 165 / 86

Let's proceed to step 3:
If we divide 165 by 86, we get 1 and a remainder of 79.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 79 after subtracting 86 from 165.
Include the next digit (5) from the dividend after 79, then repeat: 795 / 86

Let's proceed to step 4:
The number 86 fits into 795 9 times, leaving a remainder of 21.
Write down 9 as next digit of the result. 
Result so far: 19.0
Subtract 774 from 795 to get 21.
Take the next digit (8) from the dividend and append it to 21, then repeat: 218 / 86

On to step 5:
86 goes into 218 2 times with a remainder of 46.
The next digit of our result is 2. 
Result so far: 192.0
If we take 172 away from 218, we end up with 46.
Take the next digit (9) from the dividend and append it to 46, then repeat: 469 / 86

Moving on to step 6:
When dividing 469 by 86, we get 5 with a remainder of 39.
The next digit of our result is 5. 
Result so far: 1925.0
Deduct 430 from 469 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
When dividing 390 by 86, we get 4 with a remainder of 46.
Put 4 as the next digit of the answer. 
Result so far: 1925.4
Subtracting 344 from 390 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 8:
86 goes into 460 5 times with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 1925.45
Subtracting 430 from 460 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 9:
If we divide 300 by 86, we get 3 and a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 1925.453
Subtracting 258 from 300 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 10:
The number 86 fits into 420 4 times, leaving a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 1925.4534
The remainder is 76 after subtracting 344 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 11:
If we divide 760 by 86, we get 8 and a remainder of 72.
The next digit of our result is 8. 
Result so far: 1925.45348
If we take 688 away from 760, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 12:
86 goes into 720 8 times with a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 1925.453488
Deduct 688 from 720 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 1925.453488 and a remainder of 3.2e-06.