18972597 divided by 242 
The aim is to understand the frequency of 242 in 18972597.

Advancing to step 1:
When dividing 1 by 242, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 242

Going ahead to step 2:
If we divide 18 by 242, we get 0 and a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Fetch the next digit (9) from the dividend, attach it to 18 and continue: 189 / 242

On to step 3:
When dividing 189 by 242, we get 0 with a remainder of 189.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 189, we end up with 189.
Grab the next digit (7) from the dividend, add it to 189, then carry on: 1897 / 242

Advancing to step 4:
242 can be fit into 1897 7 times, resulting in a remainder of 203.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 1694 away from 1897, we end up with 203.
Bring next digit (2) of the dividend behind the 203 and repeat the process: 2032 / 242

Step 5:
When dividing 2032 by 242, we get 8 with a remainder of 96.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
The remainder is 96 after subtracting 1936 from 2032.
Include the next digit (5) from the dividend after 96, then repeat: 965 / 242

Step 6:
965 divided by 242 is 3 with a remainder of 239.
Put 3 as the next digit of the answer. 
Result so far: 783.0
Subtracting 726 from 965 leaves us with 239.
Grab the next digit (9) from the dividend, add it to 239, then carry on: 2399 / 242

Going ahead to step 7:
2399 divided by 242 is 9 with a remainder of 221.
The number 9 becomes the next digit in our result. 
Result so far: 7839.0
Subtracting 2178 from 2399 leaves us with 221.
Bring next digit (7) of the dividend behind the 221 and repeat the process: 2217 / 242

On to step 8:
When dividing 2217 by 242, we get 9 with a remainder of 39.
The next digit of our result is 9. 
Result so far: 78399.0
Subtracting 2178 from 2217 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 9:
390 divided by 242 is 1 with a remainder of 148.
Put 1 as the next digit of the answer. 
Result so far: 78399.1
Subtracting 242 from 390 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Going ahead to step 10:
The number 242 fits into 1480 6 times, leaving a remainder of 28.
Use 6 as the next digit of our solution. 
Result so far: 78399.16
Subtract 1452 from 1480 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 11:
The number 242 fits into 280 1 times, leaving a remainder of 38.
The number 1 becomes the next digit in our result. 
Result so far: 78399.161
If we take 242 away from 280, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 12:
If we divide 380 by 242, we get 1 and a remainder of 138.
Write down 1 as next digit of the result. 
Result so far: 78399.1611
If we subtract 242 from 380, we get 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

After the division, we end up with 78399.1611 and a remainder of 0.00138.