We're dividing 393647 by 75 
We're looking to find how many times 75 goes into 393647.

Advancing to step 1:
When dividing 3 by 75, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 75

On to step 2:
The number 75 fits into 39 0 times, leaving a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Bring next digit (3) of the dividend behind the 39 and repeat the process: 393 / 75

Step 3:
75 can be fit into 393 5 times, resulting in a remainder of 18.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 375 from 393 leaves us with 18.
Bring next digit (6) of the dividend behind the 18 and repeat the process: 186 / 75

On to step 4:
If we divide 186 by 75, we get 2 and a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 52.0
Subtract 150 from 186 to get 36.
Append the next digit (4) from the dividend to 36 and continue with: 364 / 75

Advancing to step 5:
The number 75 fits into 364 4 times, leaving a remainder of 64.
The next digit of our result is 4. 
Result so far: 524.0
If we take 300 away from 364, we end up with 64.
Fetch the next digit (7) from the dividend, attach it to 64 and continue: 647 / 75

Let's proceed to step 6:
647 divided by 75 is 8 with a remainder of 47.
The next digit of our result is 8. 
Result so far: 5248.0
Subtracting 600 from 647 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 7:
The number 75 fits into 470 6 times, leaving a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 5248.6
If we subtract 450 from 470, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
The number 75 fits into 200 2 times, leaving a remainder of 50.
The next digit of our result is 2. 
Result so far: 5248.62
Deduct 150 from 200 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 9:
75 can be fit into 500 6 times, resulting in a remainder of 50.
Write down 6 as next digit of the result. 
Result so far: 5248.626
If we subtract 450 from 500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
The number 75 fits into 500 6 times, leaving a remainder of 50.
The number 6 becomes the next digit in our result. 
Result so far: 5248.6266
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 5248.6266 with a remainder of 0.0005.