40858633 ÷ 321 
Let's see how many times 321 fits into 40858633.

Let's proceed to step 1:
321 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 321

Going ahead to step 2:
321 goes into 40 0 times with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Grab the next digit (8) from the dividend, add it to 40, then carry on: 408 / 321

On to step 3:
321 goes into 408 1 times with a remainder of 87.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 321 from 408 and we're left with 87.
Include the next digit (5) from the dividend after 87, then repeat: 875 / 321

Moving on to step 4:
If we divide 875 by 321, we get 2 and a remainder of 233.
Put 2 as the next digit of the answer. 
Result so far: 12.0
The remainder is 233 after subtracting 642 from 875.
Grab the next digit (8) from the dividend, add it to 233, then carry on: 2338 / 321

On to step 5:
When dividing 2338 by 321, we get 7 with a remainder of 91.
Record the quotient 7 as the next digit in the result. 
Result so far: 127.0
The remainder is 91 after subtracting 2247 from 2338.
Fetch the next digit (6) from the dividend, attach it to 91 and continue: 916 / 321

Let's proceed to step 6:
If we divide 916 by 321, we get 2 and a remainder of 274.
The number 2 becomes the next digit in our result. 
Result so far: 1272.0
Subtracting 642 from 916 leaves us with 274.
Fetch the next digit (3) from the dividend, attach it to 274 and continue: 2743 / 321

Moving on to step 7:
321 goes into 2743 8 times with a remainder of 175.
Use 8 as the next digit of our solution. 
Result so far: 12728.0
If we subtract 2568 from 2743, we get 175.
Grab the next digit (3) from the dividend, add it to 175, then carry on: 1753 / 321

Advancing to step 8:
1753 divided by 321 is 5 with a remainder of 148.
The number 5 becomes the next digit in our result. 
Result so far: 127285.0
If we subtract 1605 from 1753, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 9:
The number 321 fits into 1480 4 times, leaving a remainder of 196.
Record the quotient 4 as the next digit in the result. 
Result so far: 127285.4
Deduct 1284 from 1480 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Moving on to step 10:
If we divide 1960 by 321, we get 6 and a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 127285.46
Deduct 1926 from 1960 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 11:
The number 321 fits into 340 1 times, leaving a remainder of 19.
The next digit of our result is 1. 
Result so far: 127285.461
If we subtract 321 from 340, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 12:
The number 321 fits into 190 0 times, leaving a remainder of 190.
The next digit of our result is 0. 
Result so far: 127285.461
Subtract 0 from 190 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

On to step 13:
The number 321 fits into 1900 5 times, leaving a remainder of 295.
The next digit of our result is 5. 
Result so far: 127285.46105
If we subtract 1605 from 1900, we get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Advancing to step 14:
If we divide 2950 by 321, we get 9 and a remainder of 61.
The next digit of our result is 9. 
Result so far: 127285.461059
If we take 2889 away from 2950, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 15:
321 can be fit into 610 1 times, resulting in a remainder of 289.
Write down 1 as next digit of the result. 
Result so far: 127285.4610591
Subtracting 321 from 610 leaves us with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

On to step 16:
If we divide 2890 by 321, we get 9 and a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 127285.46105919
If we take 2889 away from 2890, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 127285.46105919 and a remainder of 1e-09.