We look at the division of 696243 by 18 
The aim is to understand the frequency of 18 in 696243.

Moving on to step 1:
If we divide 6 by 18, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
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

Moving on to step 2:
When dividing 69 by 18, we get 3 with a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 54 away from 69, we end up with 15.
Grab the next digit (6) from the dividend, add it to 15, then carry on: 156 / 18

Going ahead to step 3:
The number 18 fits into 156 8 times, leaving a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Deduct 144 from 156 and we're left with 12.
Take the next digit (2) from the dividend and append it to 12, then repeat: 122 / 18

On to step 4:
18 goes into 122 6 times with a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 386.0
Subtract 108 from 122 to get 14.
Append the next digit (4) from the dividend to 14 and continue with: 144 / 18

Let's proceed to step 5:
The number 18 fits into 144 8 times, leaving a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 3868.0
Subtracting 144 from 144 leaves us with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 18

Let's proceed to step 6:
When dividing 3 by 18, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 38680.0
Deduct 0 from 3 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
18 can be fit into 30 1 times, resulting in a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 38680.1
Subtract 18 from 30 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 8:
The number 18 fits into 120 6 times, leaving a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 38680.16
If we take 108 away from 120, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
When dividing 120 by 18, we get 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 38680.166
Subtract 108 from 120 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 38680.166 and a remainder of 0.0012.