We divide 21168196 by 18
The aim is to understand the frequency of 18 in 21168196.

On to step 1:
If we divide 2 by 18, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 18

Moving on to step 2:
21 divided by 18 is 1 with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 18 from 21 leaves us with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 18

Let's proceed to step 3:
The number 18 fits into 31 1 times, leaving a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 18 from 31 to get 13.
Fetch the next digit (6) from the dividend, attach it to 13 and continue: 136 / 18

Advancing to step 4:
18 can be fit into 136 7 times, resulting in a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 117.0
Subtracting 126 from 136 leaves us with 10.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 18

Going ahead to step 5:
The number 18 fits into 108 6 times, leaving a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 1176.0
If we take 108 away from 108, we end up with 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 18

Step 6:
18 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 11760.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 18

Advancing to step 7:
19 divided by 18 is 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 117601.0
Subtract 18 from 19 to get 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 18

Step 8:
18 goes into 16 0 times with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 1176010.0
Deduct 0 from 16 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
If we divide 160 by 18, we get 8 and a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 1176010.8
Subtract 144 from 160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
If we divide 160 by 18, we get 8 and a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 1176010.88
If we subtract 144 from 160, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 1176010.88 with a balance of 0.016.