We divide 999574 by 18
The aim is to understand the frequency of 18 in 999574.

Let's proceed to step 1:
If we divide 9 by 18, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 18

Step 2:
99 divided by 18 is 5 with a remainder of 9.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 9 after subtracting 90 from 99.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 18

Going ahead to step 3:
When dividing 99 by 18, we get 5 with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
Deduct 90 from 99 and we're left with 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 18

On to step 4:
18 can be fit into 95 5 times, resulting in a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 555.0
The remainder is 5 after subtracting 90 from 95.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 18

Advancing to step 5:
18 can be fit into 57 3 times, resulting in a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 5553.0
If we take 54 away from 57, we end up with 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 18

Step 6:
If we divide 34 by 18, we get 1 and a remainder of 16.
Write down 1 as next digit of the result. 
Result so far: 55531.0
Deduct 18 from 34 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 7:
18 can be fit into 160 8 times, resulting in a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 55531.8
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 8:
The number 18 fits into 160 8 times, leaving a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 55531.88
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 55531.88, and the remainder is 0.016.