We look at the division of 702738 by 18 
The aim is to understand the frequency of 18 in 702738.

On to step 1:
18 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 18

Moving on to step 2:
18 goes into 70 3 times with a remainder of 16.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 54 from 70 leaves us with 16.
Take the next digit (2) from the dividend and append it to 16, then repeat: 162 / 18

Let's proceed to step 3:
The number 18 fits into 162 9 times, leaving a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 39.0
Subtract 162 from 162 to get 0.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 18

Step 4:
When dividing 7 by 18, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 390.0
If we subtract 0 from 7, we get 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 18

Going ahead to step 5:
The number 18 fits into 73 4 times, leaving a remainder of 1.
The next digit of our result is 4. 
Result so far: 3904.0
Subtracting 72 from 73 leaves us with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 18

On to step 6:
When dividing 18 by 18, we get 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 39041.0
If we take 18 away from 18, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
0 divided by 18 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 39041.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
If we divide 0 by 18, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 39041.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 39041.0, with a leftover of 0.0.