394423 ÷ 75 
We want to figure out the number of times 394423 can be divided by 75.

Advancing to step 1:
75 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 75

Let's proceed to step 2:
39 divided by 75 is 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Fetch the next digit (4) from the dividend, attach it to 39 and continue: 394 / 75

On to step 3:
When dividing 394 by 75, we get 5 with a remainder of 19.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 375 from 394 and we're left with 19.
Fetch the next digit (4) from the dividend, attach it to 19 and continue: 194 / 75

Going ahead to step 4:
75 can be fit into 194 2 times, resulting in a remainder of 44.
The next digit of our result is 2. 
Result so far: 52.0
If we subtract 150 from 194, we get 44.
Fetch the next digit (2) from the dividend, attach it to 44 and continue: 442 / 75

Moving on to step 5:
75 goes into 442 5 times with a remainder of 67.
Write down 5 as next digit of the result. 
Result so far: 525.0
If we subtract 375 from 442, we get 67.
Include the next digit (3) from the dividend after 67, then repeat: 673 / 75

Let's proceed to step 6:
If we divide 673 by 75, we get 8 and a remainder of 73.
Use 8 as the next digit of our solution. 
Result so far: 5258.0
The remainder is 73 after subtracting 600 from 673.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 7:
If we divide 730 by 75, we get 9 and a remainder of 55.
Record the quotient 9 as the next digit in the result. 
Result so far: 5258.9
Subtract 675 from 730 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 8:
If we divide 550 by 75, we get 7 and a remainder of 25.
Record the quotient 7 as the next digit in the result. 
Result so far: 5258.97
Subtracting 525 from 550 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.

Going ahead to step 9:
If we divide 250 by 75, we get 3 and a remainder of 25.
The next digit of our result is 3. 
Result so far: 5258.973
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.

On to step 10:
75 can be fit into 250 3 times, resulting in a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 5258.9733
If we take 225 away from 250, we end up 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 5258.9733 and a remainder of 0.00025.