38728009 ÷ 9 
Our goal is to divide 38728009 by 9.

Advancing to step 1:
The number 9 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 9

Step 2:
If we divide 38 by 9, we get 4 and a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 36 away from 38, we end up with 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 9

On to step 3:
9 can be fit into 27 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
Subtract 27 from 27 to get 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 9

On to step 4:
When dividing 2 by 9, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 430.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 9

On to step 5:
28 divided by 9 is 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 4303.0
If we take 27 away from 28, we end up with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 9

On to step 6:
The number 9 fits into 10 1 times, leaving a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 43031.0
Deduct 9 from 10 and we're left with 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 9

Advancing to step 7:
When dividing 10 by 9, we get 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 430311.0
If we take 9 away from 10, we end up with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 9

Let's proceed to step 8:
When dividing 19 by 9, we get 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 4303112.0
If we subtract 18 from 19, we 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.

On to step 9:
9 can be fit into 10 1 times, resulting in a remainder of 1.
The next digit of our result is 1. 
Result so far: 4303112.1
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.

On to step 10:
9 goes into 10 1 times with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 4303112.11
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.

After the division, we end up with 4303112.11 and a remainder of 0.001.