We look at the division of 16188591 by 855 
The aim is to understand the frequency of 855 in 16188591.

Advancing to step 1:
When dividing 1 by 855, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 855

Moving on to step 2:
855 can be fit into 16 0 times, resulting in a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Grab the next digit (1) from the dividend, add it to 16, then carry on: 161 / 855

Let's proceed to step 3:
855 goes into 161 0 times with a remainder of 161.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 161, we get 161.
Bring next digit (8) of the dividend behind the 161 and repeat the process: 1618 / 855

Going ahead to step 4:
855 can be fit into 1618 1 times, resulting in a remainder of 763.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 763 after subtracting 855 from 1618.
Fetch the next digit (8) from the dividend, attach it to 763 and continue: 7638 / 855

Moving on to step 5:
7638 divided by 855 is 8 with a remainder of 798.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtract 6840 from 7638 to get 798.
Take the next digit (5) from the dividend and append it to 798, then repeat: 7985 / 855

Let's proceed to step 6:
The number 855 fits into 7985 9 times, leaving a remainder of 290.
The number 9 becomes the next digit in our result. 
Result so far: 189.0
Subtracting 7695 from 7985 leaves us with 290.
Take the next digit (9) from the dividend and append it to 290, then repeat: 2909 / 855

Step 7:
When dividing 2909 by 855, we get 3 with a remainder of 344.
The next digit of our result is 3. 
Result so far: 1893.0
If we subtract 2565 from 2909, we get 344.
Grab the next digit (1) from the dividend, add it to 344, then carry on: 3441 / 855

Step 8:
If we divide 3441 by 855, we get 4 and a remainder of 21.
Write down 4 as next digit of the result. 
Result so far: 18934.0
Deduct 3420 from 3441 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 9:
The number 855 fits into 210 0 times, leaving a remainder of 210.
The next digit of our result is 0. 
Result so far: 18934.0
If we subtract 0 from 210, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 10:
If we divide 2100 by 855, we get 2 and a remainder of 390.
Use 2 as the next digit of our solution. 
Result so far: 18934.02
Subtracting 1710 from 2100 leaves us with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Going ahead to step 11:
855 can be fit into 3900 4 times, resulting in a remainder of 480.
Record the quotient 4 as the next digit in the result. 
Result so far: 18934.024
The remainder is 480 after subtracting 3420 from 3900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Going ahead to step 12:
855 goes into 4800 5 times with a remainder of 525.
Use 5 as the next digit of our solution. 
Result so far: 18934.0245
Subtract 4275 from 4800 to get 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Let's proceed to step 13:
The number 855 fits into 5250 6 times, leaving a remainder of 120.
Use 6 as the next digit of our solution. 
Result so far: 18934.02456
Subtracting 5130 from 5250 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 14:
If we divide 1200 by 855, we get 1 and a remainder of 345.
The next digit of our result is 1. 
Result so far: 18934.024561
If we subtract 855 from 1200, we get 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Let's proceed to step 15:
855 goes into 3450 4 times with a remainder of 30.
Write down 4 as next digit of the result. 
Result so far: 18934.0245614
The remainder is 30 after subtracting 3420 from 3450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 16:
When dividing 300 by 855, we get 0 with a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 18934.0245614
If we subtract 0 from 300, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

In conclusion, the division gives 18934.0245614 with a balance of 3e-07.