Let's divide 99657457 by 243
The aim is to understand the frequency of 243 in 99657457.

Step 1:
The number 243 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 243

Let's proceed to step 2:
When dividing 99 by 243, we get 0 with a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 99, we end up with 99.
Fetch the next digit (6) from the dividend, attach it to 99 and continue: 996 / 243

Moving on to step 3:
243 goes into 996 4 times with a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 24 after subtracting 972 from 996.
Fetch the next digit (5) from the dividend, attach it to 24 and continue: 245 / 243

Let's proceed to step 4:
243 can be fit into 245 1 times, resulting in a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 41.0
The remainder is 2 after subtracting 243 from 245.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 243

Step 5:
27 divided by 243 is 0 with a remainder of 27.
The next digit of our result is 0. 
Result so far: 410.0
If we subtract 0 from 27, we get 27.
Fetch the next digit (4) from the dividend, attach it to 27 and continue: 274 / 243

On to step 6:
When dividing 274 by 243, we get 1 with a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 4101.0
Deduct 243 from 274 and we're left with 31.
Take the next digit (5) from the dividend and append it to 31, then repeat: 315 / 243

Advancing to step 7:
243 can be fit into 315 1 times, resulting in a remainder of 72.
Put 1 as the next digit of the answer. 
Result so far: 41011.0
If we take 243 away from 315, we end up with 72.
Fetch the next digit (7) from the dividend, attach it to 72 and continue: 727 / 243

Advancing to step 8:
If we divide 727 by 243, we get 2 and a remainder of 241.
The next digit of our result is 2. 
Result so far: 410112.0
Subtracting 486 from 727 leaves us with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

On to step 9:
If we divide 2410 by 243, we get 9 and a remainder of 223.
The number 9 becomes the next digit in our result. 
Result so far: 410112.9
Subtract 2187 from 2410 to get 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

On to step 10:
2230 divided by 243 is 9 with a remainder of 43.
Put 9 as the next digit of the answer. 
Result so far: 410112.99
Subtract 2187 from 2230 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

In conclusion, the division gives 410112.99 with a balance of 0.043.