We look at the division of 198891 by 18 
We're looking to find how many times 18 goes into 198891.

Step 1:
The number 18 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 18

Let's proceed to step 2:
18 can be fit into 19 1 times, resulting in a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 18 from 19 leaves us with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 18

Moving on to step 3:
18 divided by 18 is 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtract 18 from 18 to get 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 18

Moving on to step 4:
The number 18 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 110.0
Subtract 0 from 8 to get 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 18

Step 5:
18 goes into 89 4 times with a remainder of 17.
The number 4 becomes the next digit in our result. 
Result so far: 1104.0
Subtracting 72 from 89 leaves us with 17.
Append the next digit (1) from the dividend to 17 and continue with: 171 / 18

Moving on to step 6:
18 can be fit into 171 9 times, resulting in a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 11049.0
Subtract 162 from 171 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
90 divided by 18 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 11049.5
Subtracting 90 from 90 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
The number 18 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 11049.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
The number 18 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 11049.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 11049.5 with a remainder of 0.0.