We're dividing 307358 by 85 
The aim is to understand the frequency of 85 in 307358.

On to step 1:
When dividing 3 by 85, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 85

Going ahead to step 2:
The number 85 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Include the next digit (7) from the dividend after 30, then repeat: 307 / 85

Step 3:
When dividing 307 by 85, we get 3 with a remainder of 52.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 255 from 307 leaves us with 52.
Append the next digit (3) from the dividend to 52 and continue with: 523 / 85

Going ahead to step 4:
85 can be fit into 523 6 times, resulting in a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 36.0
Subtract 510 from 523 to get 13.
Fetch the next digit (5) from the dividend, attach it to 13 and continue: 135 / 85

Going ahead to step 5:
When dividing 135 by 85, we get 1 with a remainder of 50.
Record the quotient 1 as the next digit in the result. 
Result so far: 361.0
Subtract 85 from 135 to get 50.
Grab the next digit (8) from the dividend, add it to 50, then carry on: 508 / 85

Step 6:
85 goes into 508 5 times with a remainder of 83.
Record the quotient 5 as the next digit in the result. 
Result so far: 3615.0
Subtracting 425 from 508 leaves us with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 7:
85 can be fit into 830 9 times, resulting in a remainder of 65.
Record the quotient 9 as the next digit in the result. 
Result so far: 3615.9
Deduct 765 from 830 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 8:
85 can be fit into 650 7 times, resulting in a remainder of 55.
Write down 7 as next digit of the result. 
Result so far: 3615.97
Subtracting 595 from 650 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 9:
550 divided by 85 is 6 with a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 3615.976
Subtracting 510 from 550 leaves us 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 10:
85 can be fit into 400 4 times, resulting in a remainder of 60.
The number 4 becomes the next digit in our result. 
Result so far: 3615.9764
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.

Step 11:
600 divided by 85 is 7 with a remainder of 5.
The next digit of our result is 7. 
Result so far: 3615.97647
If we take 595 away from 600, we end up with 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 12:
50 divided by 85 is 0 with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 3615.97647
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 13:
85 goes into 500 5 times with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 3615.9764705
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.

Going ahead to step 14:
750 divided by 85 is 8 with a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 3615.97647058
If we take 680 away from 750, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 3615.97647058, with a leftover of 7e-08.