We're dividing 9901231 by 492 
Let's see how many times 492 fits into 9901231.

Going ahead to step 1:
9 divided by 492 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 492

Going ahead to step 2:
When dividing 99 by 492, we get 0 with a remainder of 99.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 99 to get 99.
Grab the next digit (0) from the dividend, add it to 99, then carry on: 990 / 492

Moving on to step 3:
The number 492 fits into 990 2 times, leaving a remainder of 6.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 984 from 990 to get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 492

Going ahead to step 4:
If we divide 61 by 492, we get 0 and a remainder of 61.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Subtracting 0 from 61 leaves us with 61.
Grab the next digit (2) from the dividend, add it to 61, then carry on: 612 / 492

On to step 5:
492 can be fit into 612 1 times, resulting in a remainder of 120.
Record the quotient 1 as the next digit in the result. 
Result so far: 201.0
Deduct 492 from 612 and we're left with 120.
Take the next digit (3) from the dividend and append it to 120, then repeat: 1203 / 492

Advancing to step 6:
When dividing 1203 by 492, we get 2 with a remainder of 219.
Use 2 as the next digit of our solution. 
Result so far: 2012.0
If we take 984 away from 1203, we end up with 219.
Append the next digit (1) from the dividend to 219 and continue with: 2191 / 492

On to step 7:
The number 492 fits into 2191 4 times, leaving a remainder of 223.
The next digit of our result is 4. 
Result so far: 20124.0
Subtract 1968 from 2191 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.

Advancing to step 8:
If we divide 2230 by 492, we get 4 and a remainder of 262.
Put 4 as the next digit of the answer. 
Result so far: 20124.4
Subtracting 1968 from 2230 leaves us with 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Let's proceed to step 9:
2620 divided by 492 is 5 with a remainder of 160.
Put 5 as the next digit of the answer. 
Result so far: 20124.45
Subtracting 2460 from 2620 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 10:
1600 divided by 492 is 3 with a remainder of 124.
Use 3 as the next digit of our solution. 
Result so far: 20124.453
If we take 1476 away from 1600, we end up with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Moving on to step 11:
492 can be fit into 1240 2 times, resulting in a remainder of 256.
Put 2 as the next digit of the answer. 
Result so far: 20124.4532
Subtracting 984 from 1240 leaves us with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

On to step 12:
When dividing 2560 by 492, we get 5 with a remainder of 100.
The number 5 becomes the next digit in our result. 
Result so far: 20124.45325
Deduct 2460 from 2560 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 13:
492 goes into 1000 2 times with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 20124.453252
Subtract 984 from 1000 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 14:
492 goes into 160 0 times with a remainder of 160.
The number 0 becomes the next digit in our result. 
Result so far: 20124.453252
If we subtract 0 from 160, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 15:
492 can be fit into 1600 3 times, resulting in a remainder of 124.
Put 3 as the next digit of the answer. 
Result so far: 20124.45325203
Subtract 1476 from 1600 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

After the division, we end up with 20124.45325203 and a remainder of 1.24e-07.