We're dividing 390447 by 75 
We're looking to find how many times 75 goes into 390447.

Going ahead to step 1:
The number 75 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 75

Let's proceed to step 2:
When dividing 39 by 75, we get 0 with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Grab the next digit (0) from the dividend, add it to 39, then carry on: 390 / 75

Let's proceed to step 3:
75 goes into 390 5 times with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 375 away from 390, we end up with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 75

Going ahead to step 4:
75 goes into 154 2 times with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 52.0
If we take 150 away from 154, we end up with 4.
Fetch the next digit (4) from the dividend, attach it to 4 and continue: 44 / 75

Let's proceed to step 5:
If we divide 44 by 75, we get 0 and a remainder of 44.
Put 0 as the next digit of the answer. 
Result so far: 520.0
If we subtract 0 from 44, we get 44.
Include the next digit (7) from the dividend after 44, then repeat: 447 / 75

On to step 6:
When dividing 447 by 75, we get 5 with a remainder of 72.
Record the quotient 5 as the next digit in the result. 
Result so far: 5205.0
Subtracting 375 from 447 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 7:
75 can be fit into 720 9 times, resulting in a remainder of 45.
Write down 9 as next digit of the result. 
Result so far: 5205.9
If we take 675 away from 720, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 8:
75 can be fit into 450 6 times, resulting in a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 5205.96
The remainder is 0 after subtracting 450 from 450.
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.
Write down 0 as next digit of the result. 
Result so far: 5205.96
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.

Let's proceed to step 10:
75 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 5205.96
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 final result is 5205.96 with a remainder of 0.0.