387853 ÷ 18 
The aim is to understand the frequency of 18 in 387853.

Going ahead to step 1:
18 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 18

Moving on to step 2:
If we divide 38 by 18, we get 2 and a remainder of 2.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 36 from 38, we get 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 18

On to step 3:
18 can be fit into 27 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 21.0
The remainder is 9 after subtracting 18 from 27.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 18

Step 4:
18 can be fit into 98 5 times, resulting in a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 215.0
If we subtract 90 from 98, we get 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 18

Advancing to step 5:
The number 18 fits into 85 4 times, leaving a remainder of 13.
Record the quotient 4 as the next digit in the result. 
Result so far: 2154.0
Subtracting 72 from 85 leaves us with 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 18

On to step 6:
When dividing 133 by 18, we get 7 with a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 21547.0
Deduct 126 from 133 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
If we divide 70 by 18, we get 3 and a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 21547.3
If we subtract 54 from 70, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 8:
If we divide 160 by 18, we get 8 and a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 21547.38
Deduct 144 from 160 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.

Moving on to step 9:
When dividing 160 by 18, we get 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 21547.388
Subtract 144 from 160 to get 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 21547.388, and the remainder is 0.0016.