We're dividing 259308 by 86 
The aim is to understand the frequency of 86 in 259308.

Going ahead to step 1:
86 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 86

Step 2:
86 goes into 25 0 times with a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 25 to get 25.
Grab the next digit (9) from the dividend, add it to 25, then carry on: 259 / 86

Step 3:
86 can be fit into 259 3 times, resulting in a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 258 from 259 to get 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 86

Moving on to step 4:
86 can be fit into 13 0 times, resulting in a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
The remainder is 13 after subtracting 0 from 13.
Grab the next digit (0) from the dividend, add it to 13, then carry on: 130 / 86

On to step 5:
When dividing 130 by 86, we get 1 with a remainder of 44.
Record the quotient 1 as the next digit in the result. 
Result so far: 301.0
If we subtract 86 from 130, we get 44.
Bring next digit (8) of the dividend behind the 44 and repeat the process: 448 / 86

Moving on to step 6:
86 goes into 448 5 times with a remainder of 18.
Record the quotient 5 as the next digit in the result. 
Result so far: 3015.0
The remainder is 18 after subtracting 430 from 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 7:
When dividing 180 by 86, we get 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 3015.2
If we take 172 away from 180, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
When dividing 80 by 86, we get 0 with a remainder of 80.
The next digit of our result is 0. 
Result so far: 3015.2
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 9:
86 goes into 800 9 times with a remainder of 26.
Write down 9 as next digit of the result. 
Result so far: 3015.209
If we take 774 away from 800, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 10:
260 divided by 86 is 3 with a remainder of 2.
The next digit of our result is 3. 
Result so far: 3015.2093
The remainder is 2 after subtracting 258 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 11:
If we divide 20 by 86, we get 0 and a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 3015.2093
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 12:
200 divided by 86 is 2 with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 3015.209302
If we subtract 172 from 200, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 13:
If we divide 280 by 86, we get 3 and a remainder of 22.
Use 3 as the next digit of our solution. 
Result so far: 3015.2093023
The remainder is 22 after subtracting 258 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 14:
When dividing 220 by 86, we get 2 with a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 3015.20930232
If we subtract 172 from 220, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 3015.20930232, with a leftover of 4.8e-08.