We look at the division of 621255 by 75 
Let's see how many times 75 fits into 621255.

Let's proceed to step 1:
75 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (2) from the dividend and append it to 6, then repeat: 62 / 75

On to step 2:
75 goes into 62 0 times with a remainder of 62.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 62 leaves us with 62.
Append the next digit (1) from the dividend to 62 and continue with: 621 / 75

Let's proceed to step 3:
The number 75 fits into 621 8 times, leaving a remainder of 21.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 600 from 621 and we're left with 21.
Fetch the next digit (2) from the dividend, attach it to 21 and continue: 212 / 75

Let's proceed to step 4:
When dividing 212 by 75, we get 2 with a remainder of 62.
Record the quotient 2 as the next digit in the result. 
Result so far: 82.0
If we subtract 150 from 212, we get 62.
Fetch the next digit (5) from the dividend, attach it to 62 and continue: 625 / 75

Step 5:
625 divided by 75 is 8 with a remainder of 25.
Record the quotient 8 as the next digit in the result. 
Result so far: 828.0
Deduct 600 from 625 and we're left with 25.
Take the next digit (5) from the dividend and append it to 25, then repeat: 255 / 75

Going ahead to step 6:
75 can be fit into 255 3 times, resulting in a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 8283.0
If we subtract 225 from 255, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 7:
If we divide 300 by 75, we get 4 and a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 8283.4
The remainder is 0 after subtracting 300 from 300.
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 8:
If we divide 0 by 75, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8283.4
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
When dividing 0 by 75, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8283.4
Deduct 0 from 0 and we're left 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.

The quotient of the division is 8283.4, and the remainder is 0.0.