We look at the division of 86515435 by 235 
The aim is to understand the frequency of 235 in 86515435.

Going ahead to step 1:
235 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 235

Moving on to step 2:
The number 235 fits into 86 0 times, leaving a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Append the next digit (5) from the dividend to 86 and continue with: 865 / 235

Advancing to step 3:
When dividing 865 by 235, we get 3 with a remainder of 160.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 705 from 865 leaves us with 160.
Include the next digit (1) from the dividend after 160, then repeat: 1601 / 235

Let's proceed to step 4:
The number 235 fits into 1601 6 times, leaving a remainder of 191.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
If we take 1410 away from 1601, we end up with 191.
Bring next digit (5) of the dividend behind the 191 and repeat the process: 1915 / 235

Advancing to step 5:
If we divide 1915 by 235, we get 8 and a remainder of 35.
Use 8 as the next digit of our solution. 
Result so far: 368.0
Deduct 1880 from 1915 and we're left with 35.
Fetch the next digit (4) from the dividend, attach it to 35 and continue: 354 / 235

Going ahead to step 6:
354 divided by 235 is 1 with a remainder of 119.
Use 1 as the next digit of our solution. 
Result so far: 3681.0
Deduct 235 from 354 and we're left with 119.
Grab the next digit (3) from the dividend, add it to 119, then carry on: 1193 / 235

Moving on to step 7:
The number 235 fits into 1193 5 times, leaving a remainder of 18.
Put 5 as the next digit of the answer. 
Result so far: 36815.0
Subtracting 1175 from 1193 leaves us with 18.
Take the next digit (5) from the dividend and append it to 18, then repeat: 185 / 235

Advancing to step 8:
235 can be fit into 185 0 times, resulting in a remainder of 185.
Write down 0 as next digit of the result. 
Result so far: 368150.0
If we subtract 0 from 185, we get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Going ahead to step 9:
When dividing 1850 by 235, we get 7 with a remainder of 205.
Put 7 as the next digit of the answer. 
Result so far: 368150.7
If we take 1645 away from 1850, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Going ahead to step 10:
If we divide 2050 by 235, we get 8 and a remainder of 170.
Put 8 as the next digit of the answer. 
Result so far: 368150.78
Subtracting 1880 from 2050 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 11:
235 goes into 1700 7 times with a remainder of 55.
Put 7 as the next digit of the answer. 
Result so far: 368150.787
If we take 1645 away from 1700, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 12:
235 goes into 550 2 times with a remainder of 80.
The next digit of our result is 2. 
Result so far: 368150.7872
Deduct 470 from 550 and we're left with 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 13:
235 goes into 800 3 times with a remainder of 95.
The next digit of our result is 3. 
Result so far: 368150.78723
The remainder is 95 after subtracting 705 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Step 14:
950 divided by 235 is 4 with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 368150.787234
Deduct 940 from 950 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 15:
235 can be fit into 100 0 times, resulting in a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 368150.787234
If we take 0 away from 100, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 16:
When dividing 1000 by 235, we get 4 with a remainder of 60.
Write down 4 as next digit of the result. 
Result so far: 368150.78723404
The remainder is 60 after subtracting 940 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 368150.78723404, with a leftover of 6e-08.