Let's divide 39993043 by 3
We want to divide 39993043 by 3.

Step 1:
3 goes into 3 1 times with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 3 from 3 and we're left with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 3

Going ahead to step 2:
3 goes into 9 3 times with a remainder of 0.
The next digit of our result is 3. 
Result so far: 13.0
Deduct 9 from 9 and we're left with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 3

On to step 3:
When dividing 9 by 3, we get 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 133.0
The remainder is 0 after subtracting 9 from 9.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 3

Let's proceed to step 4:
When dividing 9 by 3, we get 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 1333.0
Subtract 9 from 9 to get 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 3

Moving on to step 5:
If we divide 3 by 3, we get 1 and a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 13331.0
If we take 3 away from 3, we end up with 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 3

On to step 6:
3 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 133310.0
The remainder is 0 after subtracting 0 from 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 3

Advancing to step 7:
3 goes into 4 1 times with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1333101.0
If we take 3 away from 4, we end up with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 3

Step 8:
3 goes into 13 4 times with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 13331014.0
If we take 12 away from 13, 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.

Step 9:
3 can be fit into 10 3 times, resulting in a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 13331014.3
Subtracting 9 from 10 leaves us 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.

Let's proceed to step 10:
3 can be fit into 10 3 times, resulting in a remainder of 1.
The next digit of our result is 3. 
Result so far: 13331014.33
If we take 9 away from 10, 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.

In conclusion, the division gives 13331014.33 with a balance of 0.001.