100989 divided by 18 
Let's see how many times 18 fits into 100989.

Step 1:
When dividing 1 by 18, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 18

Moving on to step 2:
If we divide 10 by 18, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 10 to get 10.
Take the next digit (0) from the dividend and append it to 10, then repeat: 100 / 18

Advancing to step 3:
18 can be fit into 100 5 times, resulting in a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 90 from 100 leaves us with 10.
Grab the next digit (9) from the dividend, add it to 10, then carry on: 109 / 18

Let's proceed to step 4:
109 divided by 18 is 6 with a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 56.0
Deduct 108 from 109 and we're left with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 18

Step 5:
If we divide 18 by 18, we get 1 and a remainder of 0.
The next digit of our result is 1. 
Result so far: 561.0
Subtract 18 from 18 to get 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 18

Moving on to step 6:
9 divided by 18 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 5610.0
Deduct 0 from 9 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
If we divide 90 by 18, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 5610.5
If we take 90 away from 90, we end up 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:
When dividing 0 by 18, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5610.5
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.

On to step 9:
If we divide 0 by 18, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5610.5
If we take 0 away from 0, we end up 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.

The quotient of the division is 5610.5, and the remainder is 0.0.