We divide 664407 by 75
We want to figure out the number of times 664407 can be divided by 75.

Advancing to step 1:
When dividing 6 by 75, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 75

Advancing to step 2:
If we divide 66 by 75, we get 0 and a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Append the next digit (4) from the dividend to 66 and continue with: 664 / 75

Moving on to step 3:
75 can be fit into 664 8 times, resulting in a remainder of 64.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 600 from 664 and we're left with 64.
Take the next digit (4) from the dividend and append it to 64, then repeat: 644 / 75

Step 4:
644 divided by 75 is 8 with a remainder of 44.
Use 8 as the next digit of our solution. 
Result so far: 88.0
If we take 600 away from 644, we end up with 44.
Take the next digit (0) from the dividend and append it to 44, then repeat: 440 / 75

Moving on to step 5:
The number 75 fits into 440 5 times, leaving a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 885.0
The remainder is 65 after subtracting 375 from 440.
Include the next digit (7) from the dividend after 65, then repeat: 657 / 75

Moving on to step 6:
The number 75 fits into 657 8 times, leaving a remainder of 57.
The number 8 becomes the next digit in our result. 
Result so far: 8858.0
The remainder is 57 after subtracting 600 from 657.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 7:
75 goes into 570 7 times with a remainder of 45.
The number 7 becomes the next digit in our result. 
Result so far: 8858.7
If we subtract 525 from 570, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 8:
When dividing 450 by 75, we get 6 with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 8858.76
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.

Advancing to step 9:
When dividing 0 by 75, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 8858.76
Subtracting 0 from 0 leaves us 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 10:
0 divided by 75 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 8858.76
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 8858.76 with a remainder of 0.0.