780924 ÷ 18 
The aim is to understand the frequency of 18 in 780924.

Let's proceed to step 1:
When dividing 7 by 18, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 18

Step 2:
18 goes into 78 4 times with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 72 from 78 leaves us with 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 18

Going ahead to step 3:
If we divide 60 by 18, we get 3 and a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 43.0
If we subtract 54 from 60, we get 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 18

Step 4:
18 can be fit into 69 3 times, resulting in a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 433.0
Subtracting 54 from 69 leaves us with 15.
Take the next digit (2) from the dividend and append it to 15, then repeat: 152 / 18

Let's proceed to step 5:
The number 18 fits into 152 8 times, leaving a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 4338.0
If we subtract 144 from 152, we get 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 18

Going ahead to step 6:
When dividing 84 by 18, we get 4 with a remainder of 12.
The next digit of our result is 4. 
Result so far: 43384.0
Deduct 72 from 84 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
If we divide 120 by 18, we get 6 and a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 43384.6
If we take 108 away from 120, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
18 can be fit into 120 6 times, resulting in a remainder of 12.
The next digit of our result is 6. 
Result so far: 43384.66
If we subtract 108 from 120, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 43384.66 with a remaining 0.012.