310883 divided by 18 
The aim is to understand the frequency of 18 in 310883.

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
Subtract 0 from 3 to get 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 18

Let's proceed to step 2:
18 can be fit into 31 1 times, resulting in a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 18 away from 31, we end up with 13.
Grab the next digit (0) from the dividend, add it to 13, then carry on: 130 / 18

Let's proceed to step 3:
18 goes into 130 7 times with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we subtract 126 from 130, we get 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 18

Let's proceed to step 4:
When dividing 48 by 18, we get 2 with a remainder of 12.
The next digit of our result is 2. 
Result so far: 172.0
Subtract 36 from 48 to get 12.
Fetch the next digit (8) from the dividend, attach it to 12 and continue: 128 / 18

Let's proceed to step 5:
18 goes into 128 7 times with a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 1727.0
Subtract 126 from 128 to get 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 18

Going ahead to step 6:
When dividing 23 by 18, we get 1 with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 17271.0
If we take 18 away from 23, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 7:
18 can be fit into 50 2 times, resulting in a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 17271.2
If we subtract 36 from 50, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
140 divided by 18 is 7 with a remainder of 14.
The next digit of our result is 7. 
Result so far: 17271.27
Subtract 126 from 140 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 9:
The number 18 fits into 140 7 times, leaving a remainder of 14.
The next digit of our result is 7. 
Result so far: 17271.277
If we subtract 126 from 140, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The quotient of the division is 17271.277, and the remainder is 0.0014.