We look at the division of 729046 by 18 
The aim is to understand the frequency of 18 in 729046.

Moving on to step 1:
If we divide 7 by 18, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, 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 2:
When dividing 72 by 18, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 72 from 72 and we're left with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 18

Let's proceed to step 3:
9 divided by 18 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 40.0
If we subtract 0 from 9, we get 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 18

Advancing to step 4:
When dividing 90 by 18, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 405.0
If we take 90 away from 90, we end up with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 18

Advancing to step 5:
18 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 4050.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 18

Step 6:
18 can be fit into 46 2 times, resulting in a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 40502.0
If we subtract 36 from 46, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
100 divided by 18 is 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 40502.5
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
If we divide 100 by 18, we get 5 and a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 40502.55
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 40502.55, and the remainder is 0.01.