We look at the division of 425966 by 85 
The aim is to understand the frequency of 85 in 425966.

On to step 1:
When dividing 4 by 85, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 85

Advancing to step 2:
85 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Append the next digit (5) from the dividend to 42 and continue with: 425 / 85

Step 3:
85 goes into 425 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 425 from 425 leaves us with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 85

On to step 4:
85 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (6) from the dividend, add it to 9, then carry on: 96 / 85

Advancing to step 5:
96 divided by 85 is 1 with a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 501.0
Subtract 85 from 96 to get 11.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 85

Going ahead to step 6:
The number 85 fits into 116 1 times, leaving a remainder of 31.
The next digit of our result is 1. 
Result so far: 5011.0
Deduct 85 from 116 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 7:
When dividing 310 by 85, we get 3 with a remainder of 55.
Write down 3 as next digit of the result. 
Result so far: 5011.3
The remainder is 55 after subtracting 255 from 310.
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 8:
85 can be fit into 550 6 times, resulting in a remainder of 40.
Put 6 as the next digit of the answer. 
Result so far: 5011.36
If we take 510 away from 550, 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.

Let's proceed to step 9:
The number 85 fits into 400 4 times, leaving a remainder of 60.
Use 4 as the next digit of our solution. 
Result so far: 5011.364
Subtracting 340 from 400 leaves us 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.

Moving on to step 10:
85 can be fit into 600 7 times, resulting in a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 5011.3647
The remainder is 5 after subtracting 595 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 11:
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: 5011.3647
The remainder is 50 after subtracting 0 from 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 12:
85 goes into 500 5 times with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 5011.364705
Subtracting 425 from 500 leaves us 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.

Going ahead to step 13:
If we divide 750 by 85, we get 8 and a remainder of 70.
Write down 8 as next digit of the result. 
Result so far: 5011.3647058
Subtract 680 from 750 to 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.

On to step 14:
85 goes into 700 8 times with a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 5011.36470588
If we take 680 away from 700, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 5011.36470588, and the remainder is 2e-08.