860469 ÷ 18 
The aim is to understand the frequency of 18 in 860469.

On 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.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 18

Going ahead to step 2:
When dividing 86 by 18, we get 4 with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 72 away from 86, we end up with 14.
Fetch the next digit (0) from the dividend, attach it to 14 and continue: 140 / 18

Moving on to step 3:
When dividing 140 by 18, we get 7 with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 47.0
Subtract 126 from 140 to get 14.
Take the next digit (4) from the dividend and append it to 14, then repeat: 144 / 18

Advancing to step 4:
18 can be fit into 144 8 times, resulting in a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 478.0
Subtract 144 from 144 to get 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 18

Advancing to step 5:
18 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 4780.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 18

On to step 6:
The number 18 fits into 69 3 times, leaving a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 47803.0
The remainder is 15 after subtracting 54 from 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
18 goes into 150 8 times with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 47803.8
Subtracting 144 from 150 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
60 divided by 18 is 3 with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 47803.83
If we subtract 54 from 60, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
60 divided by 18 is 3 with a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 47803.833
Subtracting 54 from 60 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Our division results in 47803.833 with a remaining 0.0006.