We're dividing 297550 by 86 
The aim is to understand the frequency of 86 in 297550.

Advancing to step 1:
2 divided by 86 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 86

Moving on to step 2:
29 divided by 86 is 0 with a remainder of 29.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 29, we get 29.
Bring next digit (7) of the dividend behind the 29 and repeat the process: 297 / 86

Going ahead to step 3:
The number 86 fits into 297 3 times, leaving a remainder of 39.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 258 from 297 and we're left with 39.
Grab the next digit (5) from the dividend, add it to 39, then carry on: 395 / 86

Step 4:
The number 86 fits into 395 4 times, leaving a remainder of 51.
Put 4 as the next digit of the answer. 
Result so far: 34.0
If we subtract 344 from 395, we get 51.
Include the next digit (5) from the dividend after 51, then repeat: 515 / 86

Moving on to step 5:
515 divided by 86 is 5 with a remainder of 85.
Put 5 as the next digit of the answer. 
Result so far: 345.0
Subtracting 430 from 515 leaves us with 85.
Bring next digit (0) of the dividend behind the 85 and repeat the process: 850 / 86

Moving on to step 6:
86 goes into 850 9 times with a remainder of 76.
Record the quotient 9 as the next digit in the result. 
Result so far: 3459.0
Deduct 774 from 850 and we're left 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.

On to step 7:
When dividing 760 by 86, we get 8 with a remainder of 72.
Put 8 as the next digit of the answer. 
Result so far: 3459.8
Subtracting 688 from 760 leaves us 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.

Advancing to step 8:
86 can be fit into 720 8 times, resulting in a remainder of 32.
The next digit of our result is 8. 
Result so far: 3459.88
Subtracting 688 from 720 leaves us 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.

The final result is 3459.88 with a remainder of 0.032.