235393 divided by 86 
The aim is to understand the frequency of 86 in 235393.

On to step 1:
When dividing 2 by 86, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 86

Going ahead to step 2:
86 goes into 23 0 times with a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 23 after subtracting 0 from 23.
Append the next digit (5) from the dividend to 23 and continue with: 235 / 86

Step 3:
86 goes into 235 2 times with a remainder of 63.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 172 from 235, we get 63.
Take the next digit (3) from the dividend and append it to 63, then repeat: 633 / 86

Moving on to step 4:
86 can be fit into 633 7 times, resulting in a remainder of 31.
Write down 7 as next digit of the result. 
Result so far: 27.0
If we take 602 away from 633, we end up with 31.
Append the next digit (9) from the dividend to 31 and continue with: 319 / 86

Advancing to step 5:
When dividing 319 by 86, we get 3 with a remainder of 61.
Record the quotient 3 as the next digit in the result. 
Result so far: 273.0
Deduct 258 from 319 and we're left with 61.
Take the next digit (3) from the dividend and append it to 61, then repeat: 613 / 86

Let's proceed to step 6:
If we divide 613 by 86, we get 7 and a remainder of 11.
Record the quotient 7 as the next digit in the result. 
Result so far: 2737.0
If we take 602 away from 613, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
If we divide 110 by 86, we get 1 and a remainder of 24.
Put 1 as the next digit of the answer. 
Result so far: 2737.1
If we subtract 86 from 110, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 8:
When dividing 240 by 86, we get 2 with a remainder of 68.
Use 2 as the next digit of our solution. 
Result so far: 2737.12
If we take 172 away from 240, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 9:
86 can be fit into 680 7 times, resulting in a remainder of 78.
Record the quotient 7 as the next digit in the result. 
Result so far: 2737.127
Subtract 602 from 680 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 10:
When dividing 780 by 86, we get 9 with a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 2737.1279
If we subtract 774 from 780, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 11:
86 can be fit into 60 0 times, resulting in a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 2737.1279
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 12:
The number 86 fits into 600 6 times, leaving a remainder of 84.
Write down 6 as next digit of the result. 
Result so far: 2737.127906
If we subtract 516 from 600, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 13:
840 divided by 86 is 9 with a remainder of 66.
Write down 9 as next digit of the result. 
Result so far: 2737.1279069
Deduct 774 from 840 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 14:
660 divided by 86 is 7 with a remainder of 58.
Put 7 as the next digit of the answer. 
Result so far: 2737.12790697
If we subtract 602 from 660, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

After the division, we end up with 2737.12790697 and a remainder of 5.8e-08.