253255 divided by 86 
The aim is to understand the frequency of 86 in 253255.

Advancing to step 1:
When dividing 2 by 86, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 86

Step 2:
The number 86 fits into 25 0 times, leaving a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Take the next digit (3) from the dividend and append it to 25, then repeat: 253 / 86

Moving on to step 3:
The number 86 fits into 253 2 times, leaving a remainder of 81.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 172 from 253 to get 81.
Fetch the next digit (2) from the dividend, attach it to 81 and continue: 812 / 86

Advancing to step 4:
When dividing 812 by 86, we get 9 with a remainder of 38.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
The remainder is 38 after subtracting 774 from 812.
Grab the next digit (5) from the dividend, add it to 38, then carry on: 385 / 86

Going ahead to step 5:
The number 86 fits into 385 4 times, leaving a remainder of 41.
Write down 4 as next digit of the result. 
Result so far: 294.0
If we subtract 344 from 385, we get 41.
Grab the next digit (5) from the dividend, add it to 41, then carry on: 415 / 86

On to step 6:
86 goes into 415 4 times with a remainder of 71.
Put 4 as the next digit of the answer. 
Result so far: 2944.0
If we subtract 344 from 415, we get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 7:
86 goes into 710 8 times with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 2944.8
Subtracting 688 from 710 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 8:
When dividing 220 by 86, we get 2 with a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 2944.82
If we take 172 away from 220, we end up 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.

Let's proceed to step 9:
The number 86 fits into 480 5 times, leaving a remainder of 50.
The next digit of our result is 5. 
Result so far: 2944.825
Subtract 430 from 480 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 10:
When dividing 500 by 86, we get 5 with a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 2944.8255
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.

Our division results in 2944.8255 with a remaining 0.0007.