99574758 divided by 486 
The aim is to understand the frequency of 486 in 99574758.

Let's proceed to step 1:
9 divided by 486 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 486

Step 2:
The number 486 fits into 99 0 times, leaving a remainder of 99.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 99 to get 99.
Bring next digit (5) of the dividend behind the 99 and repeat the process: 995 / 486

Step 3:
If we divide 995 by 486, we get 2 and a remainder of 23.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 972 from 995 to get 23.
Include the next digit (7) from the dividend after 23, then repeat: 237 / 486

Let's proceed to step 4:
486 goes into 237 0 times with a remainder of 237.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we subtract 0 from 237, we get 237.
Include the next digit (4) from the dividend after 237, then repeat: 2374 / 486

Let's proceed to step 5:
The number 486 fits into 2374 4 times, leaving a remainder of 430.
Use 4 as the next digit of our solution. 
Result so far: 204.0
The remainder is 430 after subtracting 1944 from 2374.
Include the next digit (7) from the dividend after 430, then repeat: 4307 / 486

Going ahead to step 6:
486 can be fit into 4307 8 times, resulting in a remainder of 419.
Put 8 as the next digit of the answer. 
Result so far: 2048.0
Deduct 3888 from 4307 and we're left with 419.
Grab the next digit (5) from the dividend, add it to 419, then carry on: 4195 / 486

Step 7:
When dividing 4195 by 486, we get 8 with a remainder of 307.
Put 8 as the next digit of the answer. 
Result so far: 20488.0
If we subtract 3888 from 4195, we get 307.
Grab the next digit (8) from the dividend, add it to 307, then carry on: 3078 / 486

Going ahead to step 8:
486 goes into 3078 6 times with a remainder of 162.
The next digit of our result is 6. 
Result so far: 204886.0
The remainder is 162 after subtracting 2916 from 3078.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Going ahead to step 9:
If we divide 1620 by 486, we get 3 and a remainder of 162.
The next digit of our result is 3. 
Result so far: 204886.3
Subtracting 1458 from 1620 leaves us with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Moving on to step 10:
The number 486 fits into 1620 3 times, leaving a remainder of 162.
The number 3 becomes the next digit in our result. 
Result so far: 204886.33
Deduct 1458 from 1620 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

After the division, we end up with 204886.33 and a remainder of 0.162.