90640249 divided by 488 
We want to divide 90640249 by 488.

Step 1:
The number 488 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 488

Step 2:
488 goes into 90 0 times with a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Include the next digit (6) from the dividend after 90, then repeat: 906 / 488

On to step 3:
When dividing 906 by 488, we get 1 with a remainder of 418.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 488 from 906, we get 418.
Append the next digit (4) from the dividend to 418 and continue with: 4184 / 488

Going ahead to step 4:
488 goes into 4184 8 times with a remainder of 280.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
The remainder is 280 after subtracting 3904 from 4184.
Grab the next digit (0) from the dividend, add it to 280, then carry on: 2800 / 488

Going ahead to step 5:
When dividing 2800 by 488, we get 5 with a remainder of 360.
The number 5 becomes the next digit in our result. 
Result so far: 185.0
Deduct 2440 from 2800 and we're left with 360.
Fetch the next digit (2) from the dividend, attach it to 360 and continue: 3602 / 488

Advancing to step 6:
488 can be fit into 3602 7 times, resulting in a remainder of 186.
The number 7 becomes the next digit in our result. 
Result so far: 1857.0
Subtracting 3416 from 3602 leaves us with 186.
Take the next digit (4) from the dividend and append it to 186, then repeat: 1864 / 488

Let's proceed to step 7:
488 can be fit into 1864 3 times, resulting in a remainder of 400.
The next digit of our result is 3. 
Result so far: 18573.0
Deduct 1464 from 1864 and we're left with 400.
Take the next digit (9) from the dividend and append it to 400, then repeat: 4009 / 488

Let's proceed to step 8:
4009 divided by 488 is 8 with a remainder of 105.
Write down 8 as next digit of the result. 
Result so far: 185738.0
Deduct 3904 from 4009 and we're left with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Advancing to step 9:
488 goes into 1050 2 times with a remainder of 74.
Record the quotient 2 as the next digit in the result. 
Result so far: 185738.2
Subtract 976 from 1050 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 10:
488 can be fit into 740 1 times, resulting in a remainder of 252.
Use 1 as the next digit of our solution. 
Result so far: 185738.21
If we take 488 away from 740, we end up with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Going ahead to step 11:
488 goes into 2520 5 times with a remainder of 80.
The number 5 becomes the next digit in our result. 
Result so far: 185738.215
If we subtract 2440 from 2520, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 12:
800 divided by 488 is 1 with a remainder of 312.
Write down 1 as next digit of the result. 
Result so far: 185738.2151
If we subtract 488 from 800, we get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

On to step 13:
488 can be fit into 3120 6 times, resulting in a remainder of 192.
The number 6 becomes the next digit in our result. 
Result so far: 185738.21516
Deduct 2928 from 3120 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

On to step 14:
488 goes into 1920 3 times with a remainder of 456.
The number 3 becomes the next digit in our result. 
Result so far: 185738.215163
If we subtract 1464 from 1920, we get 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Moving on to step 15:
4560 divided by 488 is 9 with a remainder of 168.
Put 9 as the next digit of the answer. 
Result so far: 185738.2151639
Deduct 4392 from 4560 and we're left with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

On to step 16:
If we divide 1680 by 488, we get 3 and a remainder of 216.
Write down 3 as next digit of the result. 
Result so far: 185738.21516393
Deduct 1464 from 1680 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

The final outcome is 185738.21516393, with a leftover of 2.16e-07.