We're dividing 615451 by 75 
We want to divide 615451 by 75.

Going ahead to step 1:
The number 75 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 75

Going ahead to step 2:
The number 75 fits into 61 0 times, leaving a remainder of 61.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 61 leaves us with 61.
Take the next digit (5) from the dividend and append it to 61, then repeat: 615 / 75

On to step 3:
615 divided by 75 is 8 with a remainder of 15.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtract 600 from 615 to get 15.
Fetch the next digit (4) from the dividend, attach it to 15 and continue: 154 / 75

On to step 4:
The number 75 fits into 154 2 times, leaving a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 82.0
If we subtract 150 from 154, we get 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 75

On to step 5:
45 divided by 75 is 0 with a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 820.0
Subtracting 0 from 45 leaves us with 45.
Fetch the next digit (1) from the dividend, attach it to 45 and continue: 451 / 75

Step 6:
75 goes into 451 6 times with a remainder of 1.
The next digit of our result is 6. 
Result so far: 8206.0
If we take 450 away from 451, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
75 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 8206.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
If we divide 100 by 75, we get 1 and a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 8206.01
Subtracting 75 from 100 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.

Moving on to step 9:
75 goes into 250 3 times with a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 8206.013
The remainder is 25 after subtracting 225 from 250.
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:
250 divided by 75 is 3 with a remainder of 25.
Write down 3 as next digit of the result. 
Result so far: 8206.0133
The remainder is 25 after subtracting 225 from 250.
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 8206.0133 and a remainder of 0.00025.