We're dividing 288074 by 86 
The aim is to understand the frequency of 86 in 288074.

Moving on to step 1:
When dividing 2 by 86, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 86

Moving on to step 2:
The number 86 fits into 28 0 times, leaving a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 28, we get 28.
Grab the next digit (8) from the dividend, add it to 28, then carry on: 288 / 86

Advancing to step 3:
86 can be fit into 288 3 times, resulting in a remainder of 30.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 258 away from 288, we end up with 30.
Bring next digit (0) of the dividend behind the 30 and repeat the process: 300 / 86

Step 4:
When dividing 300 by 86, we get 3 with a remainder of 42.
The next digit of our result is 3. 
Result so far: 33.0
If we subtract 258 from 300, we get 42.
Bring next digit (7) of the dividend behind the 42 and repeat the process: 427 / 86

On to step 5:
86 can be fit into 427 4 times, resulting in a remainder of 83.
The number 4 becomes the next digit in our result. 
Result so far: 334.0
If we subtract 344 from 427, we get 83.
Take the next digit (4) from the dividend and append it to 83, then repeat: 834 / 86

Going ahead to step 6:
The number 86 fits into 834 9 times, leaving a remainder of 60.
Write down 9 as next digit of the result. 
Result so far: 3349.0
Deduct 774 from 834 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.

Advancing to step 7:
86 can be fit into 600 6 times, resulting in a remainder of 84.
The number 6 becomes the next digit in our result. 
Result so far: 3349.6
Deduct 516 from 600 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 8:
The number 86 fits into 840 9 times, leaving a remainder of 66.
Write down 9 as next digit of the result. 
Result so far: 3349.69
Subtracting 774 from 840 leaves us 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.

On to step 9:
86 can be fit into 660 7 times, resulting in a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 3349.697
If we take 602 away from 660, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 10:
When dividing 580 by 86, we get 6 with a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 3349.6976
The remainder is 64 after subtracting 516 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 11:
When dividing 640 by 86, we get 7 with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 3349.69767
If we take 602 away from 640, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 12:
When dividing 380 by 86, we get 4 with a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 3349.697674
The remainder is 36 after subtracting 344 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 13:
The number 86 fits into 360 4 times, leaving a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 3349.6976744
The remainder is 16 after subtracting 344 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 3349.6976744 with a remaining 1.6e-07.