We're dividing 39335857 by 321 
We want to figure out the number of times 39335857 can be divided by 321.

Moving on to step 1:
The number 321 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 321

Let's proceed to step 2:
When dividing 39 by 321, we get 0 with a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Append the next digit (3) from the dividend to 39 and continue with: 393 / 321

Step 3:
393 divided by 321 is 1 with a remainder of 72.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 321 from 393 and we're left with 72.
Fetch the next digit (3) from the dividend, attach it to 72 and continue: 723 / 321

Let's proceed to step 4:
321 goes into 723 2 times with a remainder of 81.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we take 642 away from 723, we end up with 81.
Take the next digit (5) from the dividend and append it to 81, then repeat: 815 / 321

Let's proceed to step 5:
If we divide 815 by 321, we get 2 and a remainder of 173.
The next digit of our result is 2. 
Result so far: 122.0
Deduct 642 from 815 and we're left with 173.
Grab the next digit (8) from the dividend, add it to 173, then carry on: 1738 / 321

On to step 6:
321 goes into 1738 5 times with a remainder of 133.
Write down 5 as next digit of the result. 
Result so far: 1225.0
Subtract 1605 from 1738 to get 133.
Bring next digit (5) of the dividend behind the 133 and repeat the process: 1335 / 321

On to step 7:
When dividing 1335 by 321, we get 4 with a remainder of 51.
Write down 4 as next digit of the result. 
Result so far: 12254.0
Deduct 1284 from 1335 and we're left with 51.
Include the next digit (7) from the dividend after 51, then repeat: 517 / 321

Going ahead to step 8:
If we divide 517 by 321, we get 1 and a remainder of 196.
The next digit of our result is 1. 
Result so far: 122541.0
The remainder is 196 after subtracting 321 from 517.
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 9:
If we divide 1960 by 321, we get 6 and a remainder of 34.
Put 6 as the next digit of the answer. 
Result so far: 122541.6
The remainder is 34 after subtracting 1926 from 1960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 10:
The number 321 fits into 340 1 times, leaving a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 122541.61
The remainder is 19 after subtracting 321 from 340.
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 11:
321 goes into 190 0 times with a remainder of 190.
Put 0 as the next digit of the answer. 
Result so far: 122541.61
If we take 0 away from 190, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 12:
When dividing 1900 by 321, we get 5 with a remainder of 295.
Write down 5 as next digit of the result. 
Result so far: 122541.6105
The remainder is 295 after subtracting 1605 from 1900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

On to step 13:
321 can be fit into 2950 9 times, resulting in a remainder of 61.
Use 9 as the next digit of our solution. 
Result so far: 122541.61059
Deduct 2889 from 2950 and we're left 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.

Going ahead to step 14:
If we divide 610 by 321, we get 1 and a remainder of 289.
The number 1 becomes the next digit in our result. 
Result so far: 122541.610591
If we subtract 321 from 610, we get 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Advancing to step 15:
321 can be fit into 2890 9 times, resulting in a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 122541.6105919
Subtract 2889 from 2890 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 16:
321 can be fit into 10 0 times, resulting in a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 122541.6105919
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 122541.6105919 and a remainder of 1e-08.