39809073 ÷ 3 
Let's see how many times 3 fits into 39809073.

Let's proceed to step 1:
When dividing 3 by 3, we get 1 with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 3 from 3, we get 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 3

Moving on to step 2:
The number 3 fits into 9 3 times, leaving a remainder of 0.
The next digit of our result is 3. 
Result so far: 13.0
Subtracting 9 from 9 leaves us with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 3

Step 3:
The number 3 fits into 8 2 times, leaving a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 132.0
Subtract 6 from 8 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 3

Moving on to step 4:
When dividing 20 by 3, we get 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 1326.0
The remainder is 2 after subtracting 18 from 20.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 3

On to step 5:
3 can be fit into 29 9 times, resulting in a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 13269.0
Deduct 27 from 29 and we're left with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 3

Let's proceed to step 6:
20 divided by 3 is 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 132696.0
The remainder is 2 after subtracting 18 from 20.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 3

On to step 7:
If we divide 27 by 3, we get 9 and a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 1326969.0
Subtract 27 from 27 to get 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 3

Moving on to step 8:
3 goes into 3 1 times with a remainder of 0.
The next digit of our result is 1. 
Result so far: 13269691.0
If we subtract 3 from 3, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
0 divided by 3 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 13269691.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
When dividing 0 by 3, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 13269691.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 13269691.0, and the remainder is 0.0.