We divide 90134503 by 321
Let's see how many times 321 fits into 90134503.

On to step 1:
321 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 321

Going ahead to step 2:
321 goes into 90 0 times with a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Append the next digit (1) from the dividend to 90 and continue with: 901 / 321

Moving on to step 3:
The number 321 fits into 901 2 times, leaving a remainder of 259.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 642 from 901 to get 259.
Take the next digit (3) from the dividend and append it to 259, then repeat: 2593 / 321

Step 4:
321 goes into 2593 8 times with a remainder of 25.
The number 8 becomes the next digit in our result. 
Result so far: 28.0
Deduct 2568 from 2593 and we're left with 25.
Bring next digit (4) of the dividend behind the 25 and repeat the process: 254 / 321

Going ahead to step 5:
If we divide 254 by 321, we get 0 and a remainder of 254.
Record the quotient 0 as the next digit in the result. 
Result so far: 280.0
Deduct 0 from 254 and we're left with 254.
Append the next digit (5) from the dividend to 254 and continue with: 2545 / 321

On to step 6:
The number 321 fits into 2545 7 times, leaving a remainder of 298.
The number 7 becomes the next digit in our result. 
Result so far: 2807.0
Subtract 2247 from 2545 to get 298.
Include the next digit (0) from the dividend after 298, then repeat: 2980 / 321

Going ahead to step 7:
321 goes into 2980 9 times with a remainder of 91.
Use 9 as the next digit of our solution. 
Result so far: 28079.0
Subtracting 2889 from 2980 leaves us with 91.
Grab the next digit (3) from the dividend, add it to 91, then carry on: 913 / 321

Moving on to step 8:
913 divided by 321 is 2 with a remainder of 271.
The next digit of our result is 2. 
Result so far: 280792.0
Subtracting 642 from 913 leaves us with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Moving on to step 9:
The number 321 fits into 2710 8 times, leaving a remainder of 142.
Put 8 as the next digit of the answer. 
Result so far: 280792.8
Subtract 2568 from 2710 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

On to step 10:
If we divide 1420 by 321, we get 4 and a remainder of 136.
Use 4 as the next digit of our solution. 
Result so far: 280792.84
If we subtract 1284 from 1420, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Advancing to step 11:
The number 321 fits into 1360 4 times, leaving a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 280792.844
The remainder is 76 after subtracting 1284 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

The quotient of the division is 280792.844, and the remainder is 0.0076.