We divide 997632 by 18
The aim is to understand the frequency of 18 in 997632.

Going ahead to step 1:
9 divided by 18 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 18

Moving on to step 2:
99 divided by 18 is 5 with a remainder of 9.
The next digit of our result is 5. 
Result so far: 5.0
Deduct 90 from 99 and we're left with 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 18

On to step 3:
When dividing 97 by 18, we get 5 with a remainder of 7.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
Deduct 90 from 97 and we're left with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 18

On to step 4:
18 can be fit into 76 4 times, resulting in a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 554.0
Subtracting 72 from 76 leaves us with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 18

Moving on to step 5:
If we divide 43 by 18, we get 2 and a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 5542.0
If we take 36 away from 43, we end up with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 18

Moving on to step 6:
18 can be fit into 72 4 times, resulting in a remainder of 0.
The next digit of our result is 4. 
Result so far: 55424.0
If we take 72 away from 72, 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.

Let's proceed to step 7:
The number 18 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 55424.0
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.

Going ahead to step 8:
18 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 55424.0
Subtracting 0 from 0 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.

The final result is 55424.0 with a remainder of 0.0.