617992 ÷ 86 
The aim is to understand the frequency of 86 in 617992.

Let's proceed to step 1:
86 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 86

Let's proceed to step 2:
61 divided by 86 is 0 with a remainder of 61.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 61, we end up with 61.
Bring next digit (7) of the dividend behind the 61 and repeat the process: 617 / 86

Moving on to step 3:
86 goes into 617 7 times with a remainder of 15.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 602 from 617, we get 15.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 86

Going ahead to step 4:
86 goes into 159 1 times with a remainder of 73.
The number 1 becomes the next digit in our result. 
Result so far: 71.0
If we subtract 86 from 159, we get 73.
Bring next digit (9) of the dividend behind the 73 and repeat the process: 739 / 86

On to step 5:
The number 86 fits into 739 8 times, leaving a remainder of 51.
The number 8 becomes the next digit in our result. 
Result so far: 718.0
The remainder is 51 after subtracting 688 from 739.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 86

On to step 6:
If we divide 512 by 86, we get 5 and a remainder of 82.
Use 5 as the next digit of our solution. 
Result so far: 7185.0
If we subtract 430 from 512, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 7:
86 goes into 820 9 times with a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 7185.9
If we subtract 774 from 820, we get 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 8:
The number 86 fits into 460 5 times, leaving a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 7185.95
Subtract 430 from 460 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
If we divide 300 by 86, we get 3 and a remainder of 42.
The next digit of our result is 3. 
Result so far: 7185.953
Deduct 258 from 300 and we're left 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.

Going ahead to step 10:
If we divide 420 by 86, we get 4 and a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 7185.9534
If we subtract 344 from 420, we get 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 11:
760 divided by 86 is 8 with a remainder of 72.
Write down 8 as next digit of the result. 
Result so far: 7185.95348
Deduct 688 from 760 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 12:
The number 86 fits into 720 8 times, leaving a remainder of 32.
The next digit of our result is 8. 
Result so far: 7185.953488
Deduct 688 from 720 and we're left 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.

The final result is 7185.953488 with a remainder of 3.2e-06.