We look at the division of 70618708 by 18 
The aim is to understand the frequency of 18 in 70618708.

Advancing to step 1:
18 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 18

Going ahead to step 2:
If we divide 70 by 18, we get 3 and a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 54 from 70 to get 16.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 18

Going ahead to step 3:
The number 18 fits into 166 9 times, leaving a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Deduct 162 from 166 and we're left with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 18

Let's proceed to step 4:
The number 18 fits into 41 2 times, leaving a remainder of 5.
Use 2 as the next digit of our solution. 
Result so far: 392.0
The remainder is 5 after subtracting 36 from 41.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 18

Advancing to step 5:
58 divided by 18 is 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 3923.0
The remainder is 4 after subtracting 54 from 58.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 18

Step 6:
47 divided by 18 is 2 with a remainder of 11.
The number 2 becomes the next digit in our result. 
Result so far: 39232.0
Subtracting 36 from 47 leaves us with 11.
Take the next digit (0) from the dividend and append it to 11, then repeat: 110 / 18

Let's proceed to step 7:
110 divided by 18 is 6 with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 392326.0
Deduct 108 from 110 and we're left with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 18

Step 8:
28 divided by 18 is 1 with a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 3923261.0
Subtracting 18 from 28 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
18 goes into 100 5 times with a remainder of 10.
The next digit of our result is 5. 
Result so far: 3923261.5
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
100 divided by 18 is 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 3923261.55
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 3923261.55, and the remainder is 0.01.