We look at the division of 458749 by 85 
The aim is to understand the frequency of 85 in 458749.

Step 1:
If we divide 4 by 85, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 85

Advancing to step 2:
The number 85 fits into 45 0 times, leaving a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Fetch the next digit (8) from the dividend, attach it to 45 and continue: 458 / 85

Let's proceed to step 3:
If we divide 458 by 85, we get 5 and a remainder of 33.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 425 from 458 to get 33.
Append the next digit (7) from the dividend to 33 and continue with: 337 / 85

On to step 4:
When dividing 337 by 85, we get 3 with a remainder of 82.
Write down 3 as next digit of the result. 
Result so far: 53.0
If we take 255 away from 337, we end up with 82.
Take the next digit (4) from the dividend and append it to 82, then repeat: 824 / 85

Going ahead to step 5:
When dividing 824 by 85, we get 9 with a remainder of 59.
Put 9 as the next digit of the answer. 
Result so far: 539.0
Subtract 765 from 824 to get 59.
Grab the next digit (9) from the dividend, add it to 59, then carry on: 599 / 85

Going ahead to step 6:
If we divide 599 by 85, we get 7 and a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 5397.0
If we subtract 595 from 599, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
40 divided by 85 is 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 5397.0
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
If we divide 400 by 85, we get 4 and a remainder of 60.
Write down 4 as next digit of the result. 
Result so far: 5397.04
Deduct 340 from 400 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
The number 85 fits into 600 7 times, leaving a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 5397.047
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.

Let's proceed to step 10:
The number 85 fits into 50 0 times, leaving a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 5397.047
Subtracting 0 from 50 leaves us 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.

Advancing to step 11:
85 can be fit into 500 5 times, resulting in a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 5397.04705
The remainder is 75 after subtracting 425 from 500.
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 12:
The number 85 fits into 750 8 times, leaving a remainder of 70.
Put 8 as the next digit of the answer. 
Result so far: 5397.047058
Subtracting 680 from 750 leaves us 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.

Step 13:
If we divide 700 by 85, we get 8 and a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 5397.0470588
The remainder is 20 after subtracting 680 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 5397.0470588 and a remainder of 2e-07.