778513 ÷ 86 
The aim is to understand the frequency of 86 in 778513.

Let's proceed to step 1:
The number 86 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 86

Moving on to step 2:
The number 86 fits into 77 0 times, leaving a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Take the next digit (8) from the dividend and append it to 77, then repeat: 778 / 86

On to step 3:
778 divided by 86 is 9 with a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
The remainder is 4 after subtracting 774 from 778.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 86

Step 4:
If we divide 45 by 86, we get 0 and a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 90.0
Subtract 0 from 45 to get 45.
Grab the next digit (1) from the dividend, add it to 45, then carry on: 451 / 86

Let's proceed to step 5:
451 divided by 86 is 5 with a remainder of 21.
Record the quotient 5 as the next digit in the result. 
Result so far: 905.0
The remainder is 21 after subtracting 430 from 451.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 86

Let's proceed to step 6:
213 divided by 86 is 2 with a remainder of 41.
Use 2 as the next digit of our solution. 
Result so far: 9052.0
Subtracting 172 from 213 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 7:
86 goes into 410 4 times with a remainder of 66.
Write down 4 as next digit of the result. 
Result so far: 9052.4
Subtracting 344 from 410 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.

Let's proceed to step 8:
When dividing 660 by 86, we get 7 with a remainder of 58.
The next digit of our result is 7. 
Result so far: 9052.47
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.

Advancing to step 9:
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: 9052.476
If we subtract 516 from 580, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 10:
640 divided by 86 is 7 with a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 9052.4767
The remainder is 38 after subtracting 602 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 11:
86 goes into 380 4 times with a remainder of 36.
Write down 4 as next digit of the result. 
Result so far: 9052.47674
Deduct 344 from 380 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 12:
When dividing 360 by 86, we get 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 9052.476744
Subtract 344 from 360 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 9052.476744, with a leftover of 1.6e-06.