We divide 724352 by 18
The aim is to understand the frequency of 18 in 724352.

Let's proceed to step 1:
7 divided by 18 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 18

Step 2:
18 goes into 72 4 times with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 72 from 72 leaves us with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 18

On to step 3:
If we divide 4 by 18, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 40.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 18

On to step 4:
When dividing 43 by 18, we get 2 with a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 402.0
Subtracting 36 from 43 leaves us with 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 18

Going ahead to step 5:
When dividing 75 by 18, we get 4 with a remainder of 3.
Use 4 as the next digit of our solution. 
Result so far: 4024.0
Subtracting 72 from 75 leaves us with 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 18

Advancing to step 6:
18 can be fit into 32 1 times, resulting in a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 40241.0
The remainder is 14 after subtracting 18 from 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
When dividing 140 by 18, we get 7 with a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 40241.7
The remainder is 14 after subtracting 126 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 8:
The number 18 fits into 140 7 times, leaving a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 40241.77
The remainder is 14 after subtracting 126 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final result is 40241.77 with a remainder of 0.014.