Let's divide 87489329 by 321
We're looking to find how many times 321 goes into 87489329.

Advancing to step 1:
If we divide 8 by 321, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 321

Step 2:
321 can be fit into 87 0 times, resulting in a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Bring next digit (4) of the dividend behind the 87 and repeat the process: 874 / 321

Going ahead to step 3:
If we divide 874 by 321, we get 2 and a remainder of 232.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 642 from 874 leaves us with 232.
Append the next digit (8) from the dividend to 232 and continue with: 2328 / 321

Advancing to step 4:
The number 321 fits into 2328 7 times, leaving a remainder of 81.
The next digit of our result is 7. 
Result so far: 27.0
Subtracting 2247 from 2328 leaves us with 81.
Include the next digit (9) from the dividend after 81, then repeat: 819 / 321

Step 5:
819 divided by 321 is 2 with a remainder of 177.
The number 2 becomes the next digit in our result. 
Result so far: 272.0
The remainder is 177 after subtracting 642 from 819.
Include the next digit (3) from the dividend after 177, then repeat: 1773 / 321

Advancing to step 6:
321 goes into 1773 5 times with a remainder of 168.
The next digit of our result is 5. 
Result so far: 2725.0
Deduct 1605 from 1773 and we're left with 168.
Bring next digit (2) of the dividend behind the 168 and repeat the process: 1682 / 321

Moving on to step 7:
If we divide 1682 by 321, we get 5 and a remainder of 77.
The next digit of our result is 5. 
Result so far: 27255.0
If we take 1605 away from 1682, we end up with 77.
Grab the next digit (9) from the dividend, add it to 77, then carry on: 779 / 321

On to step 8:
779 divided by 321 is 2 with a remainder of 137.
The number 2 becomes the next digit in our result. 
Result so far: 272552.0
If we subtract 642 from 779, we get 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Going ahead to step 9:
321 can be fit into 1370 4 times, resulting in a remainder of 86.
Record the quotient 4 as the next digit in the result. 
Result so far: 272552.4
Deduct 1284 from 1370 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Moving on to step 10:
321 can be fit into 860 2 times, resulting in a remainder of 218.
The number 2 becomes the next digit in our result. 
Result so far: 272552.42
Subtracting 642 from 860 leaves us with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

On to step 11:
If we divide 2180 by 321, we get 6 and a remainder of 254.
The next digit of our result is 6. 
Result so far: 272552.426
Deduct 1926 from 2180 and we're left with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Step 12:
2540 divided by 321 is 7 with a remainder of 293.
Record the quotient 7 as the next digit in the result. 
Result so far: 272552.4267
If we take 2247 away from 2540, we end up with 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Step 13:
If we divide 2930 by 321, we get 9 and a remainder of 41.
Use 9 as the next digit of our solution. 
Result so far: 272552.42679
If we take 2889 away from 2930, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 14:
410 divided by 321 is 1 with a remainder of 89.
Record the quotient 1 as the next digit in the result. 
Result so far: 272552.426791
Deduct 321 from 410 and we're left with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Step 15:
321 can be fit into 890 2 times, resulting in a remainder of 248.
The next digit of our result is 2. 
Result so far: 272552.4267912
Subtract 642 from 890 to get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

On to step 16:
The number 321 fits into 2480 7 times, leaving a remainder of 233.
Record the quotient 7 as the next digit in the result. 
Result so far: 272552.42679127
Deduct 2247 from 2480 and we're left with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

The final outcome is 272552.42679127, with a leftover of 2.33e-07.