99298615 ÷ 557 
The aim is to understand the frequency of 557 in 99298615.

Moving on to step 1:
When dividing 9 by 557, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 557

On to step 2:
If we divide 99 by 557, we get 0 and a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Append the next digit (2) from the dividend to 99 and continue with: 992 / 557

Advancing to step 3:
When dividing 992 by 557, we get 1 with a remainder of 435.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 557 from 992, we get 435.
Include the next digit (9) from the dividend after 435, then repeat: 4359 / 557

Moving on to step 4:
557 can be fit into 4359 7 times, resulting in a remainder of 460.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
If we take 3899 away from 4359, we end up with 460.
Include the next digit (8) from the dividend after 460, then repeat: 4608 / 557

Going ahead to step 5:
557 goes into 4608 8 times with a remainder of 152.
Write down 8 as next digit of the result. 
Result so far: 178.0
Subtract 4456 from 4608 to get 152.
Grab the next digit (6) from the dividend, add it to 152, then carry on: 1526 / 557

Going ahead to step 6:
When dividing 1526 by 557, we get 2 with a remainder of 412.
The number 2 becomes the next digit in our result. 
Result so far: 1782.0
Subtract 1114 from 1526 to get 412.
Bring next digit (1) of the dividend behind the 412 and repeat the process: 4121 / 557

On to step 7:
The number 557 fits into 4121 7 times, leaving a remainder of 222.
The number 7 becomes the next digit in our result. 
Result so far: 17827.0
If we take 3899 away from 4121, we end up with 222.
Bring next digit (5) of the dividend behind the 222 and repeat the process: 2225 / 557

Going ahead to step 8:
557 can be fit into 2225 3 times, resulting in a remainder of 554.
The next digit of our result is 3. 
Result so far: 178273.0
If we take 1671 away from 2225, we end up with 554.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

Moving on to step 9:
When dividing 5540 by 557, we get 9 with a remainder of 527.
Use 9 as the next digit of our solution. 
Result so far: 178273.9
Subtract 5013 from 5540 to get 527.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5270, and continue the process.

Step 10:
The number 557 fits into 5270 9 times, leaving a remainder of 257.
Write down 9 as next digit of the result. 
Result so far: 178273.99
Subtracting 5013 from 5270 leaves us with 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Our division results in 178273.99 with a remaining 0.257.