We're dividing 8315514 by 817 
The aim is to understand the frequency of 817 in 8315514.

On to step 1:
When dividing 8 by 817, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 817

On to step 2:
When dividing 83 by 817, we get 0 with a remainder of 83.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 83, we get 83.
Bring next digit (1) of the dividend behind the 83 and repeat the process: 831 / 817

On to step 3:
831 divided by 817 is 1 with a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 817 from 831 to get 14.
Fetch the next digit (5) from the dividend, attach it to 14 and continue: 145 / 817

Advancing to step 4:
The number 817 fits into 145 0 times, leaving a remainder of 145.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 145, we get 145.
Fetch the next digit (5) from the dividend, attach it to 145 and continue: 1455 / 817

Going ahead to step 5:
The number 817 fits into 1455 1 times, leaving a remainder of 638.
Write down 1 as next digit of the result. 
Result so far: 101.0
The remainder is 638 after subtracting 817 from 1455.
Bring next digit (1) of the dividend behind the 638 and repeat the process: 6381 / 817

Moving on to step 6:
When dividing 6381 by 817, we get 7 with a remainder of 662.
The next digit of our result is 7. 
Result so far: 1017.0
If we take 5719 away from 6381, we end up with 662.
Grab the next digit (4) from the dividend, add it to 662, then carry on: 6624 / 817

Moving on to step 7:
817 goes into 6624 8 times with a remainder of 88.
The next digit of our result is 8. 
Result so far: 10178.0
Subtracting 6536 from 6624 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Moving on to step 8:
880 divided by 817 is 1 with a remainder of 63.
The next digit of our result is 1. 
Result so far: 10178.1
Deduct 817 from 880 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 9:
817 can be fit into 630 0 times, resulting in a remainder of 630.
Record the quotient 0 as the next digit in the result. 
Result so far: 10178.1
Subtract 0 from 630 to get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Going ahead to step 10:
If we divide 6300 by 817, we get 7 and a remainder of 581.
Write down 7 as next digit of the result. 
Result so far: 10178.107
If we take 5719 away from 6300, we end up with 581.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5810, and continue the process.

Advancing to step 11:
If we divide 5810 by 817, we get 7 and a remainder of 91.
The next digit of our result is 7. 
Result so far: 10178.1077
Subtract 5719 from 5810 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

The quotient of the division is 10178.1077, and the remainder is 0.00091.