We look at the division of 478987 by 75 
We want to figure out the number of times 478987 can be divided by 75.

Step 1:
If we divide 4 by 75, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (7) from the dividend, attach it to 4 and continue: 47 / 75

Going ahead to step 2:
47 divided by 75 is 0 with a remainder of 47.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 47 leaves us with 47.
Take the next digit (8) from the dividend and append it to 47, then repeat: 478 / 75

On to step 3:
75 can be fit into 478 6 times, resulting in a remainder of 28.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 450 from 478 and we're left with 28.
Grab the next digit (9) from the dividend, add it to 28, then carry on: 289 / 75

Let's proceed to step 4:
75 can be fit into 289 3 times, resulting in a remainder of 64.
Put 3 as the next digit of the answer. 
Result so far: 63.0
Subtracting 225 from 289 leaves us with 64.
Take the next digit (8) from the dividend and append it to 64, then repeat: 648 / 75

Advancing to step 5:
When dividing 648 by 75, we get 8 with a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 638.0
If we subtract 600 from 648, we get 48.
Fetch the next digit (7) from the dividend, attach it to 48 and continue: 487 / 75

Moving on to step 6:
75 goes into 487 6 times with a remainder of 37.
Record the quotient 6 as the next digit in the result. 
Result so far: 6386.0
The remainder is 37 after subtracting 450 from 487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 7:
If we divide 370 by 75, we get 4 and a remainder of 70.
Use 4 as the next digit of our solution. 
Result so far: 6386.4
Subtracting 300 from 370 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.

Moving on to step 8:
When dividing 700 by 75, we get 9 with a remainder of 25.
Put 9 as the next digit of the answer. 
Result so far: 6386.49
Deduct 675 from 700 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 9:
75 goes into 250 3 times with a remainder of 25.
The next digit of our result is 3. 
Result so far: 6386.493
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.

Going ahead to step 10:
75 can be fit into 250 3 times, resulting in a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 6386.4933
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.

Our division results in 6386.4933 with a remaining 0.00025.