We divide 592609 by 18
The aim is to understand the frequency of 18 in 592609.

Let's proceed to step 1:
When dividing 5 by 18, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (9) from the dividend, add it to 5, then carry on: 59 / 18

Moving on to step 2:
59 divided by 18 is 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 54 from 59, we get 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 18

Going ahead to step 3:
52 divided by 18 is 2 with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 32.0
The remainder is 16 after subtracting 36 from 52.
Bring next digit (6) of the dividend behind the 16 and repeat the process: 166 / 18

On to step 4:
When dividing 166 by 18, we get 9 with a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 329.0
If we take 162 away from 166, we end up with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 18

Let's proceed to step 5:
If we divide 40 by 18, we get 2 and a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 3292.0
The remainder is 4 after subtracting 36 from 40.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 18

On to step 6:
The number 18 fits into 49 2 times, leaving a remainder of 13.
The number 2 becomes the next digit in our result. 
Result so far: 32922.0
Subtract 36 from 49 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
The number 18 fits into 130 7 times, leaving a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 32922.7
If we subtract 126 from 130, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
18 can be fit into 40 2 times, resulting in a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 32922.72
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
When dividing 40 by 18, we get 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 32922.722
Subtract 36 from 40 to get 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 quotient of the division is 32922.722, and the remainder is 0.0004.