We're dividing 657090 by 85 
The aim is to understand the frequency of 85 in 657090.

Going ahead to step 1:
When dividing 6 by 85, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 85

Let's proceed to step 2:
When dividing 65 by 85, we get 0 with a remainder of 65.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 65 to get 65.
Include the next digit (7) from the dividend after 65, then repeat: 657 / 85

Step 3:
When dividing 657 by 85, we get 7 with a remainder of 62.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 595 from 657 leaves us with 62.
Include the next digit (0) from the dividend after 62, then repeat: 620 / 85

On to step 4:
The number 85 fits into 620 7 times, leaving a remainder of 25.
Use 7 as the next digit of our solution. 
Result so far: 77.0
Subtracting 595 from 620 leaves us with 25.
Append the next digit (9) from the dividend to 25 and continue with: 259 / 85

Going ahead to step 5:
If we divide 259 by 85, we get 3 and a remainder of 4.
The next digit of our result is 3. 
Result so far: 773.0
Deduct 255 from 259 and we're left with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 85

Going ahead to step 6:
If we divide 40 by 85, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 7730.0
Deduct 0 from 40 and we're left 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.

Step 7:
400 divided by 85 is 4 with a remainder of 60.
Put 4 as the next digit of the answer. 
Result so far: 7730.4
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.

Going ahead to step 8:
If we divide 600 by 85, we get 7 and a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 7730.47
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.

Let's proceed to step 9:
When dividing 50 by 85, we get 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 7730.47
Subtract 0 from 50 to 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 10:
500 divided by 85 is 5 with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 7730.4705
Deduct 425 from 500 and we're left with 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.
The number 8 becomes the next digit in our result. 
Result so far: 7730.47058
Deduct 680 from 750 and we're left 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.

Going ahead to step 12:
85 can be fit into 700 8 times, resulting in a remainder of 20.
Use 8 as the next digit of our solution. 
Result so far: 7730.470588
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.

The final result is 7730.470588 with a remainder of 2e-06.