633280 ÷ 18 
The aim is to understand the frequency of 18 in 633280.

Advancing to step 1:
18 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 18

Let's proceed to step 2:
63 divided by 18 is 3 with a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 54 from 63, we get 9.
Bring next digit (3) of the dividend behind the 9 and repeat the process: 93 / 18

Advancing to step 3:
18 can be fit into 93 5 times, resulting in a remainder of 3.
The next digit of our result is 5. 
Result so far: 35.0
Subtract 90 from 93 to get 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 18

On to step 4:
If we divide 32 by 18, we get 1 and a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 351.0
Deduct 18 from 32 and we're left with 14.
Bring next digit (8) of the dividend behind the 14 and repeat the process: 148 / 18

Going ahead to step 5:
The number 18 fits into 148 8 times, leaving a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 3518.0
If we subtract 144 from 148, we get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 18

Moving on to step 6:
40 divided by 18 is 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 35182.0
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
40 divided by 18 is 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 35182.2
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 8:
When dividing 40 by 18, we get 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 35182.22
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 35182.22 with a remainder of 0.004.