439852 ÷ 75 
We want to figure out the number of times 439852 can be divided by 75.

Step 1:
If we divide 4 by 75, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 75

On to step 2:
If we divide 43 by 75, we get 0 and a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Fetch the next digit (9) from the dividend, attach it to 43 and continue: 439 / 75

Let's proceed to step 3:
439 divided by 75 is 5 with a remainder of 64.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 375 from 439 to get 64.
Take the next digit (8) from the dividend and append it to 64, then repeat: 648 / 75

Moving on to step 4:
When dividing 648 by 75, we get 8 with a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 58.0
If we subtract 600 from 648, we get 48.
Take the next digit (5) from the dividend and append it to 48, then repeat: 485 / 75

Advancing to step 5:
The number 75 fits into 485 6 times, leaving a remainder of 35.
Write down 6 as next digit of the result. 
Result so far: 586.0
Subtracting 450 from 485 leaves us with 35.
Fetch the next digit (2) from the dividend, attach it to 35 and continue: 352 / 75

On to step 6:
When dividing 352 by 75, we get 4 with a remainder of 52.
Use 4 as the next digit of our solution. 
Result so far: 5864.0
If we subtract 300 from 352, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 7:
75 goes into 520 6 times with a remainder of 70.
The number 6 becomes the next digit in our result. 
Result so far: 5864.6
Subtracting 450 from 520 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 8:
The number 75 fits into 700 9 times, leaving a remainder of 25.
Put 9 as the next digit of the answer. 
Result so far: 5864.69
If we subtract 675 from 700, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 9:
The number 75 fits into 250 3 times, leaving a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 5864.693
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 10:
If we divide 250 by 75, we get 3 and a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 5864.6933
Subtracting 225 from 250 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

After the division, we end up with 5864.6933 and a remainder of 0.00025.