644474 divided by 75 
We want to divide 644474 by 75.

Going ahead to step 1:
75 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 75

Going ahead to step 2:
64 divided by 75 is 0 with a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Take the next digit (4) from the dividend and append it to 64, then repeat: 644 / 75

Advancing to step 3:
The number 75 fits into 644 8 times, leaving a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 600 from 644 leaves us with 44.
Include the next digit (4) from the dividend after 44, then repeat: 444 / 75

Let's proceed to step 4:
When dividing 444 by 75, we get 5 with a remainder of 69.
Use 5 as the next digit of our solution. 
Result so far: 85.0
Deduct 375 from 444 and we're left with 69.
Fetch the next digit (7) from the dividend, attach it to 69 and continue: 697 / 75

Advancing to step 5:
The number 75 fits into 697 9 times, leaving a remainder of 22.
Write down 9 as next digit of the result. 
Result so far: 859.0
Deduct 675 from 697 and we're left with 22.
Include the next digit (4) from the dividend after 22, then repeat: 224 / 75

Step 6:
If we divide 224 by 75, we get 2 and a remainder of 74.
Record the quotient 2 as the next digit in the result. 
Result so far: 8592.0
Subtract 150 from 224 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 7:
The number 75 fits into 740 9 times, leaving a remainder of 65.
Record the quotient 9 as the next digit in the result. 
Result so far: 8592.9
Subtracting 675 from 740 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 8:
75 goes into 650 8 times with a remainder of 50.
The number 8 becomes the next digit in our result. 
Result so far: 8592.98
The remainder is 50 after subtracting 600 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
When dividing 500 by 75, we get 6 with a remainder of 50.
The next digit of our result is 6. 
Result so far: 8592.986
If we take 450 away from 500, we end up 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.

Moving on to step 10:
500 divided by 75 is 6 with a remainder of 50.
Record the quotient 6 as the next digit in the result. 
Result so far: 8592.9866
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 8592.9866 with a remainder of 0.0005.