We look at the division of 959458 by 86 
The aim is to understand the frequency of 86 in 959458.

On to step 1:
The number 86 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 86

Let's proceed to step 2:
86 can be fit into 95 1 times, resulting in a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 86 away from 95, we end up with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 86

Advancing to step 3:
The number 86 fits into 99 1 times, leaving a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtract 86 from 99 to get 13.
Grab the next digit (4) from the dividend, add it to 13, then carry on: 134 / 86

Going ahead to step 4:
134 divided by 86 is 1 with a remainder of 48.
Use 1 as the next digit of our solution. 
Result so far: 111.0
The remainder is 48 after subtracting 86 from 134.
Include the next digit (5) from the dividend after 48, then repeat: 485 / 86

On to step 5:
86 can be fit into 485 5 times, resulting in a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 1115.0
If we take 430 away from 485, we end up with 55.
Grab the next digit (8) from the dividend, add it to 55, then carry on: 558 / 86

Advancing to step 6:
86 can be fit into 558 6 times, resulting in a remainder of 42.
Put 6 as the next digit of the answer. 
Result so far: 11156.0
If we subtract 516 from 558, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 7:
When dividing 420 by 86, we get 4 with a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 11156.4
Subtracting 344 from 420 leaves us with 76.
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 8:
When dividing 760 by 86, we get 8 with a remainder of 72.
The next digit of our result is 8. 
Result so far: 11156.48
Subtract 688 from 760 to get 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 9:
86 goes into 720 8 times with a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 11156.488
If we take 688 away from 720, we end up 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.

In conclusion, the division gives 11156.488 with a balance of 0.0032.