We look at the division of 317430 by 85 
The aim is to understand the frequency of 85 in 317430.

Step 1:
The number 85 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 85

Moving on to step 2:
85 can be fit into 31 0 times, resulting in a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Append the next digit (7) from the dividend to 31 and continue with: 317 / 85

Step 3:
317 divided by 85 is 3 with a remainder of 62.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 255 from 317 to get 62.
Bring next digit (4) of the dividend behind the 62 and repeat the process: 624 / 85

Going ahead to step 4:
If we divide 624 by 85, we get 7 and a remainder of 29.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
Deduct 595 from 624 and we're left with 29.
Include the next digit (3) from the dividend after 29, then repeat: 293 / 85

On to step 5:
85 goes into 293 3 times with a remainder of 38.
Put 3 as the next digit of the answer. 
Result so far: 373.0
Subtracting 255 from 293 leaves us with 38.
Fetch the next digit (0) from the dividend, attach it to 38 and continue: 380 / 85

Let's proceed to step 6:
If we divide 380 by 85, we get 4 and a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 3734.0
If we take 340 away from 380, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 7:
400 divided by 85 is 4 with a remainder of 60.
The next digit of our result is 4. 
Result so far: 3734.4
If we subtract 340 from 400, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 8:
If we divide 600 by 85, we get 7 and a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 3734.47
If we subtract 595 from 600, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 9:
If we divide 50 by 85, we get 0 and a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 3734.47
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
If we divide 500 by 85, we get 5 and a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 3734.4705
If we subtract 425 from 500, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 11:
85 can be fit into 750 8 times, resulting in a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 3734.47058
If we subtract 680 from 750, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 12:
If we divide 700 by 85, we get 8 and a remainder of 20.
The number 8 becomes the next digit in our result. 
Result so far: 3734.470588
Subtract 680 from 700 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 3734.470588 with a remaining 2e-06.