99490817 ÷ 358 
The aim is to understand the frequency of 358 in 99490817.

Moving on to step 1:
358 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 358

Moving on to step 2:
358 goes into 99 0 times with 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.
Bring next digit (4) of the dividend behind the 99 and repeat the process: 994 / 358

On to step 3:
358 can be fit into 994 2 times, resulting in a remainder of 278.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 716 away from 994, we end up with 278.
Include the next digit (9) from the dividend after 278, then repeat: 2789 / 358

Moving on to step 4:
The number 358 fits into 2789 7 times, leaving a remainder of 283.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
The remainder is 283 after subtracting 2506 from 2789.
Bring next digit (0) of the dividend behind the 283 and repeat the process: 2830 / 358

Going ahead to step 5:
358 goes into 2830 7 times with a remainder of 324.
Put 7 as the next digit of the answer. 
Result so far: 277.0
The remainder is 324 after subtracting 2506 from 2830.
Bring next digit (8) of the dividend behind the 324 and repeat the process: 3248 / 358

Moving on to step 6:
If we divide 3248 by 358, we get 9 and a remainder of 26.
The next digit of our result is 9. 
Result so far: 2779.0
Subtracting 3222 from 3248 leaves us with 26.
Take the next digit (1) from the dividend and append it to 26, then repeat: 261 / 358

Moving on to step 7:
If we divide 261 by 358, we get 0 and a remainder of 261.
Put 0 as the next digit of the answer. 
Result so far: 27790.0
Subtract 0 from 261 to get 261.
Bring next digit (7) of the dividend behind the 261 and repeat the process: 2617 / 358

Going ahead to step 8:
358 can be fit into 2617 7 times, resulting in a remainder of 111.
The number 7 becomes the next digit in our result. 
Result so far: 277907.0
If we subtract 2506 from 2617, we get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Going ahead to step 9:
358 can be fit into 1110 3 times, resulting in a remainder of 36.
Use 3 as the next digit of our solution. 
Result so far: 277907.3
If we take 1074 away from 1110, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 10:
358 can be fit into 360 1 times, resulting in a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 277907.31
Deduct 358 from 360 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 11:
358 goes into 20 0 times with a remainder of 20.
The next digit of our result is 0. 
Result so far: 277907.31
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 12:
358 goes into 200 0 times with a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 277907.31
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 277907.31, with a leftover of 0.002.