Let's divide 99840156 by 424
Let's see how many times 424 fits into 99840156.

Advancing to step 1:
If we divide 9 by 424, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 424

Moving on to step 2:
424 can be fit into 99 0 times, resulting in a remainder of 99.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 99 after subtracting 0 from 99.
Bring next digit (8) of the dividend behind the 99 and repeat the process: 998 / 424

Moving on to step 3:
424 goes into 998 2 times with a remainder of 150.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 848 from 998, we get 150.
Bring next digit (4) of the dividend behind the 150 and repeat the process: 1504 / 424

Going ahead to step 4:
When dividing 1504 by 424, we get 3 with a remainder of 232.
The next digit of our result is 3. 
Result so far: 23.0
Deduct 1272 from 1504 and we're left with 232.
Fetch the next digit (0) from the dividend, attach it to 232 and continue: 2320 / 424

Advancing to step 5:
424 can be fit into 2320 5 times, resulting in a remainder of 200.
The number 5 becomes the next digit in our result. 
Result so far: 235.0
If we take 2120 away from 2320, we end up with 200.
Grab the next digit (1) from the dividend, add it to 200, then carry on: 2001 / 424

Advancing to step 6:
The number 424 fits into 2001 4 times, leaving a remainder of 305.
Put 4 as the next digit of the answer. 
Result so far: 2354.0
Deduct 1696 from 2001 and we're left with 305.
Take the next digit (5) from the dividend and append it to 305, then repeat: 3055 / 424

On to step 7:
3055 divided by 424 is 7 with a remainder of 87.
Record the quotient 7 as the next digit in the result. 
Result so far: 23547.0
Subtract 2968 from 3055 to get 87.
Append the next digit (6) from the dividend to 87 and continue with: 876 / 424

Going ahead to step 8:
876 divided by 424 is 2 with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 235472.0
Subtract 848 from 876 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 9:
If we divide 280 by 424, we get 0 and a remainder of 280.
The next digit of our result is 0. 
Result so far: 235472.0
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 10:
2800 divided by 424 is 6 with a remainder of 256.
Use 6 as the next digit of our solution. 
Result so far: 235472.06
Subtract 2544 from 2800 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Moving on to step 11:
2560 divided by 424 is 6 with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 235472.066
Subtract 2544 from 2560 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.

After the division, we end up with 235472.066 and a remainder of 0.0016.