286306 ÷ 86 
The aim is to understand the frequency of 86 in 286306.

On to step 1:
86 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 86

Advancing to step 2:
When dividing 28 by 86, we get 0 with a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 28, we end up with 28.
Include the next digit (6) from the dividend after 28, then repeat: 286 / 86

Advancing to step 3:
When dividing 286 by 86, we get 3 with a remainder of 28.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 258 away from 286, we end up with 28.
Append the next digit (3) from the dividend to 28 and continue with: 283 / 86

On to step 4:
283 divided by 86 is 3 with a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
If we take 258 away from 283, we end up with 25.
Fetch the next digit (0) from the dividend, attach it to 25 and continue: 250 / 86

On to step 5:
When dividing 250 by 86, we get 2 with a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 332.0
Subtract 172 from 250 to get 78.
Take the next digit (6) from the dividend and append it to 78, then repeat: 786 / 86

Step 6:
If we divide 786 by 86, we get 9 and a remainder of 12.
Put 9 as the next digit of the answer. 
Result so far: 3329.0
If we subtract 774 from 786, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
If we divide 120 by 86, we get 1 and a remainder of 34.
Put 1 as the next digit of the answer. 
Result so far: 3329.1
If we subtract 86 from 120, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 8:
86 goes into 340 3 times with a remainder of 82.
The next digit of our result is 3. 
Result so far: 3329.13
If we take 258 away from 340, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 9:
86 goes into 820 9 times with a remainder of 46.
The number 9 becomes the next digit in our result. 
Result so far: 3329.139
Deduct 774 from 820 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 10:
When dividing 460 by 86, we get 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 3329.1395
Subtracting 430 from 460 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
The number 86 fits into 300 3 times, leaving a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 3329.13953
If we take 258 away from 300, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 12:
86 goes into 420 4 times with a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 3329.139534
Deduct 344 from 420 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.

Going ahead to step 13:
When dividing 760 by 86, we get 8 with a remainder of 72.
The number 8 becomes the next digit in our result. 
Result so far: 3329.1395348
Subtract 688 from 760 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 14:
720 divided by 86 is 8 with a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 3329.13953488
If we take 688 away from 720, we end up 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.

Our division results in 3329.13953488 with a remaining 3.2e-08.