68476836 divided by 18 
The aim is to understand the frequency of 18 in 68476836.

Step 1:
18 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 18

Let's proceed to step 2:
When dividing 68 by 18, we get 3 with a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 54 from 68, we get 14.
Fetch the next digit (4) from the dividend, attach it to 14 and continue: 144 / 18

On to step 3:
The number 18 fits into 144 8 times, leaving a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
Subtract 144 from 144 to get 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 18

Step 4:
18 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 380.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 18

Going ahead to step 5:
18 can be fit into 76 4 times, resulting in a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 3804.0
Subtract 72 from 76 to get 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 18

On to step 6:
18 goes into 48 2 times with a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 38042.0
Deduct 36 from 48 and we're left with 12.
Bring next digit (3) of the dividend behind the 12 and repeat the process: 123 / 18

Going ahead to step 7:
If we divide 123 by 18, we get 6 and a remainder of 15.
Use 6 as the next digit of our solution. 
Result so far: 380426.0
Subtract 108 from 123 to get 15.
Grab the next digit (6) from the dividend, add it to 15, then carry on: 156 / 18

Advancing to step 8:
The number 18 fits into 156 8 times, leaving a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 3804268.0
If we subtract 144 from 156, we 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 9:
The number 18 fits into 120 6 times, leaving a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 3804268.6
If we subtract 108 from 120, we 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.

On to step 10:
When dividing 120 by 18, we get 6 with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 3804268.66
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.

Our division results in 3804268.66 with a remaining 0.012.