Let's divide 17991878 by 85
The aim is to understand the frequency of 85 in 17991878.

Moving on to step 1:
The number 85 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 85

Advancing to step 2:
85 goes into 17 0 times with a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Grab the next digit (9) from the dividend, add it to 17, then carry on: 179 / 85

Let's proceed to step 3:
85 can be fit into 179 2 times, resulting in a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 170 from 179, we get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 85

Going ahead to step 4:
When dividing 99 by 85, we get 1 with a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Deduct 85 from 99 and we're left with 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 85

Step 5:
The number 85 fits into 141 1 times, leaving a remainder of 56.
Put 1 as the next digit of the answer. 
Result so far: 211.0
The remainder is 56 after subtracting 85 from 141.
Fetch the next digit (8) from the dividend, attach it to 56 and continue: 568 / 85

Going ahead to step 6:
If we divide 568 by 85, we get 6 and a remainder of 58.
Use 6 as the next digit of our solution. 
Result so far: 2116.0
The remainder is 58 after subtracting 510 from 568.
Append the next digit (7) from the dividend to 58 and continue with: 587 / 85

Step 7:
The number 85 fits into 587 6 times, leaving a remainder of 77.
Use 6 as the next digit of our solution. 
Result so far: 21166.0
If we subtract 510 from 587, we get 77.
Fetch the next digit (8) from the dividend, attach it to 77 and continue: 778 / 85

Moving on to step 8:
85 goes into 778 9 times with a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 211669.0
Subtract 765 from 778 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 9:
85 goes into 130 1 times with a remainder of 45.
Use 1 as the next digit of our solution. 
Result so far: 211669.1
Subtract 85 from 130 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 10:
85 goes into 450 5 times with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 211669.15
If we subtract 425 from 450, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 11:
85 can be fit into 250 2 times, resulting in a remainder of 80.
The number 2 becomes the next digit in our result. 
Result so far: 211669.152
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:
800 divided by 85 is 9 with a remainder of 35.
The number 9 becomes the next digit in our result. 
Result so far: 211669.1529
If we take 765 away from 800, we end up with 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:
When dividing 350 by 85, we get 4 with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 211669.15294
If we subtract 340 from 350, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 14:
100 divided by 85 is 1 with a remainder of 15.
The next digit of our result is 1. 
Result so far: 211669.152941
Subtracting 85 from 100 leaves us 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.

Moving on to step 15:
When dividing 150 by 85, we get 1 with a remainder of 65.
The next digit of our result is 1. 
Result so far: 211669.1529411
Subtracting 85 from 150 leaves us 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.

Our division results in 211669.1529411 with a remaining 6.5e-07.