We're dividing 978080 by 85 
The aim is to understand the frequency of 85 in 978080.

Going ahead to step 1:
When dividing 9 by 85, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 85

Let's proceed to step 2:
97 divided by 85 is 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 85 from 97 to get 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 85

On to step 3:
85 can be fit into 128 1 times, resulting in a remainder of 43.
The next digit of our result is 1. 
Result so far: 11.0
Subtract 85 from 128 to get 43.
Bring next digit (0) of the dividend behind the 43 and repeat the process: 430 / 85

Going ahead to step 4:
430 divided by 85 is 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 115.0
The remainder is 5 after subtracting 425 from 430.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 85

Let's proceed to step 5:
58 divided by 85 is 0 with a remainder of 58.
The next digit of our result is 0. 
Result so far: 1150.0
The remainder is 58 after subtracting 0 from 58.
Bring next digit (0) of the dividend behind the 58 and repeat the process: 580 / 85

Step 6:
580 divided by 85 is 6 with a remainder of 70.
The number 6 becomes the next digit in our result. 
Result so far: 11506.0
If we take 510 away from 580, 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.

Advancing to step 7:
85 goes into 700 8 times with a remainder of 20.
Record the quotient 8 as the next digit in the result. 
Result so far: 11506.8
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.

Advancing to step 8:
The number 85 fits into 200 2 times, leaving a remainder of 30.
Write down 2 as next digit of the result. 
Result so far: 11506.82
If we subtract 170 from 200, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
If we divide 300 by 85, we get 3 and a remainder of 45.
Record the quotient 3 as the next digit in the result. 
Result so far: 11506.823
The remainder is 45 after subtracting 255 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 10:
The number 85 fits into 450 5 times, leaving a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 11506.8235
If we take 425 away from 450, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 11:
85 can be fit into 250 2 times, resulting in a remainder of 80.
Record the quotient 2 as the next digit in the result. 
Result so far: 11506.82352
Subtract 170 from 250 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 12:
85 goes into 800 9 times with a remainder of 35.
Use 9 as the next digit of our solution. 
Result so far: 11506.823529
Subtract 765 from 800 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 13:
85 goes into 350 4 times with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 11506.8235294
If we take 340 away from 350, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 14:
85 can be fit into 100 1 times, resulting in a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 11506.82352941
If we take 85 away from 100, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

In conclusion, the division gives 11506.82352941 with a balance of 1.5e-08.