We divide 384009 by 75
We're looking to find how many times 75 goes into 384009.

Advancing to step 1:
When dividing 3 by 75, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 75

Going ahead to step 2:
38 divided by 75 is 0 with a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 38, we end up with 38.
Grab the next digit (4) from the dividend, add it to 38, then carry on: 384 / 75

Let's proceed to step 3:
384 divided by 75 is 5 with a remainder of 9.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 375 from 384 and we're left with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 75

On to step 4:
75 goes into 90 1 times with a remainder of 15.
The next digit of our result is 1. 
Result so far: 51.0
The remainder is 15 after subtracting 75 from 90.
Bring next digit (0) of the dividend behind the 15 and repeat the process: 150 / 75

On to step 5:
If we divide 150 by 75, we get 2 and a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 512.0
The remainder is 0 after subtracting 150 from 150.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 75

Step 6:
The number 75 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 5120.0
If we subtract 0 from 9, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
If we divide 90 by 75, we get 1 and a remainder of 15.
The next digit of our result is 1. 
Result so far: 5120.1
The remainder is 15 after subtracting 75 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 8:
The number 75 fits into 150 2 times, leaving a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 5120.12
If we take 150 away from 150, we end up 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.

Going ahead to step 9:
75 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5120.12
If we take 0 away from 0, we end up 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:
0 divided by 75 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5120.12
Deduct 0 from 0 and we're left 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.

The final result is 5120.12 with a remainder of 0.0.