We look at the division of 81628793 by 317 
The aim is to understand the frequency of 317 in 81628793.

On to step 1:
If we divide 8 by 317, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 317

Going ahead to step 2:
If we divide 81 by 317, we get 0 and a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Grab the next digit (6) from the dividend, add it to 81, then carry on: 816 / 317

On to step 3:
317 can be fit into 816 2 times, resulting in a remainder of 182.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 634 from 816 leaves us with 182.
Take the next digit (2) from the dividend and append it to 182, then repeat: 1822 / 317

Step 4:
If we divide 1822 by 317, we get 5 and a remainder of 237.
Use 5 as the next digit of our solution. 
Result so far: 25.0
If we subtract 1585 from 1822, we get 237.
Append the next digit (8) from the dividend to 237 and continue with: 2378 / 317

Let's proceed to step 5:
317 can be fit into 2378 7 times, resulting in a remainder of 159.
The next digit of our result is 7. 
Result so far: 257.0
If we take 2219 away from 2378, we end up with 159.
Append the next digit (7) from the dividend to 159 and continue with: 1597 / 317

Step 6:
The number 317 fits into 1597 5 times, leaving a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 2575.0
Deduct 1585 from 1597 and we're left with 12.
Append the next digit (9) from the dividend to 12 and continue with: 129 / 317

Let's proceed to step 7:
The number 317 fits into 129 0 times, leaving a remainder of 129.
Use 0 as the next digit of our solution. 
Result so far: 25750.0
If we subtract 0 from 129, we get 129.
Include the next digit (3) from the dividend after 129, then repeat: 1293 / 317

Moving on to step 8:
If we divide 1293 by 317, we get 4 and a remainder of 25.
Use 4 as the next digit of our solution. 
Result so far: 257504.0
If we take 1268 away from 1293, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 9:
When dividing 250 by 317, we get 0 with a remainder of 250.
Write down 0 as next digit of the result. 
Result so far: 257504.0
Subtract 0 from 250 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 10:
The number 317 fits into 2500 7 times, leaving a remainder of 281.
The next digit of our result is 7. 
Result so far: 257504.07
Subtracting 2219 from 2500 leaves us with 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

On to step 11:
317 goes into 2810 8 times with a remainder of 274.
The next digit of our result is 8. 
Result so far: 257504.078
Deduct 2536 from 2810 and we're left with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Let's proceed to step 12:
2740 divided by 317 is 8 with a remainder of 204.
Record the quotient 8 as the next digit in the result. 
Result so far: 257504.0788
The remainder is 204 after subtracting 2536 from 2740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

The final outcome is 257504.0788, with a leftover of 0.00204.