We divide 899368 by 18
The aim is to understand the frequency of 18 in 899368.

Going ahead to step 1:
8 divided by 18 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 18

Moving on to step 2:
18 can be fit into 89 4 times, resulting in a remainder of 17.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 72 from 89, we get 17.
Take the next digit (9) from the dividend and append it to 17, then repeat: 179 / 18

Going ahead to step 3:
If we divide 179 by 18, we get 9 and a remainder of 17.
Put 9 as the next digit of the answer. 
Result so far: 49.0
If we subtract 162 from 179, we get 17.
Fetch the next digit (3) from the dividend, attach it to 17 and continue: 173 / 18

Moving on to step 4:
The number 18 fits into 173 9 times, leaving a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 499.0
Deduct 162 from 173 and we're left with 11.
Append the next digit (6) from the dividend to 11 and continue with: 116 / 18

Step 5:
18 can be fit into 116 6 times, resulting in a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 4996.0
Deduct 108 from 116 and we're left with 8.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 18

Let's proceed to step 6:
The number 18 fits into 88 4 times, leaving a remainder of 16.
The next digit of our result is 4. 
Result so far: 49964.0
If we take 72 away from 88, 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:
160 divided by 18 is 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 49964.8
Subtract 144 from 160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 8:
The number 18 fits into 160 8 times, leaving a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 49964.88
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 final outcome is 49964.88, with a leftover of 0.016.