45550055 ÷ 321 
Let's see how many times 321 fits into 45550055.

On to step 1:
321 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 321

Let's proceed to step 2:
When dividing 45 by 321, we get 0 with a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Include the next digit (5) from the dividend after 45, then repeat: 455 / 321

Step 3:
321 goes into 455 1 times with a remainder of 134.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 321 from 455 leaves us with 134.
Include the next digit (5) from the dividend after 134, then repeat: 1345 / 321

On to step 4:
The number 321 fits into 1345 4 times, leaving a remainder of 61.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we subtract 1284 from 1345, we get 61.
Include the next digit (0) from the dividend after 61, then repeat: 610 / 321

Advancing to step 5:
321 goes into 610 1 times with a remainder of 289.
Write down 1 as next digit of the result. 
Result so far: 141.0
If we subtract 321 from 610, we get 289.
Fetch the next digit (0) from the dividend, attach it to 289 and continue: 2890 / 321

On to step 6:
When dividing 2890 by 321, we get 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 1419.0
Subtracting 2889 from 2890 leaves us with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 321

Step 7:
15 divided by 321 is 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 14190.0
Deduct 0 from 15 and we're left with 15.
Append the next digit (5) from the dividend to 15 and continue with: 155 / 321

Advancing to step 8:
321 can be fit into 155 0 times, resulting in a remainder of 155.
The number 0 becomes the next digit in our result. 
Result so far: 141900.0
Subtracting 0 from 155 leaves us with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Let's proceed to step 9:
321 goes into 1550 4 times with a remainder of 266.
Put 4 as the next digit of the answer. 
Result so far: 141900.4
Subtracting 1284 from 1550 leaves us with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Let's proceed to step 10:
If we divide 2660 by 321, we get 8 and a remainder of 92.
The next digit of our result is 8. 
Result so far: 141900.48
The remainder is 92 after subtracting 2568 from 2660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Advancing to step 11:
920 divided by 321 is 2 with a remainder of 278.
Use 2 as the next digit of our solution. 
Result so far: 141900.482
Deduct 642 from 920 and we're left with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

Moving on to step 12:
321 can be fit into 2780 8 times, resulting in a remainder of 212.
Record the quotient 8 as the next digit in the result. 
Result so far: 141900.4828
The remainder is 212 after subtracting 2568 from 2780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Moving on to step 13:
321 can be fit into 2120 6 times, resulting in a remainder of 194.
Record the quotient 6 as the next digit in the result. 
Result so far: 141900.48286
The remainder is 194 after subtracting 1926 from 2120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

On to step 14:
The number 321 fits into 1940 6 times, leaving a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 141900.482866
Subtracting 1926 from 1940 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 141900.482866 and a remainder of 1.4e-06.