We divide 89089 by 18
The aim is to understand the frequency of 18 in 89089.

Going ahead to step 1:
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: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 18

On to step 2:
If we divide 89 by 18, we get 4 and a remainder of 17.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 72 from 89 leaves us with 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 18

On to step 3:
170 divided by 18 is 9 with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 49.0
If we take 162 away from 170, we end up with 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 18

Moving on to step 4:
If we divide 88 by 18, we get 4 and a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 494.0
If we subtract 72 from 88, we get 16.
Grab the next digit (9) from the dividend, add it to 16, then carry on: 169 / 18

Advancing to step 5:
When dividing 169 by 18, we get 9 with a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 4949.0
Deduct 162 from 169 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 6:
When dividing 70 by 18, we get 3 with a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 4949.3
If we take 54 away from 70, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 7:
The number 18 fits into 160 8 times, leaving a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 4949.38
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
18 goes into 160 8 times with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 4949.388
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 4949.388, and the remainder is 0.0016.