Let's divide 873704 by 18
The aim is to understand the frequency of 18 in 873704.

Advancing to step 1:
8 divided by 18 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 18

On to step 2:
18 can be fit into 87 4 times, resulting in a remainder of 15.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 72 from 87 leaves us with 15.
Grab the next digit (3) from the dividend, add it to 15, then carry on: 153 / 18

Going ahead to step 3:
The number 18 fits into 153 8 times, leaving a remainder of 9.
Use 8 as the next digit of our solution. 
Result so far: 48.0
Deduct 144 from 153 and we're left with 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 18

Going ahead to step 4:
If we divide 97 by 18, we get 5 and a remainder of 7.
Write down 5 as next digit of the result. 
Result so far: 485.0
Subtracting 90 from 97 leaves us with 7.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 18

Let's proceed to step 5:
The number 18 fits into 70 3 times, leaving a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 4853.0
The remainder is 16 after subtracting 54 from 70.
Fetch the next digit (4) from the dividend, attach it to 16 and continue: 164 / 18

Moving on to step 6:
164 divided by 18 is 9 with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 48539.0
Subtract 162 from 164 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 7:
18 goes into 20 1 times with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 48539.1
If we subtract 18 from 20, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
18 can be fit into 20 1 times, resulting in a remainder of 2.
The next digit of our result is 1. 
Result so far: 48539.11
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

In conclusion, the division gives 48539.11 with a balance of 0.002.