We're dividing 815015 by 51 
Let's see how many times 51 fits into 815015.

Going ahead to step 1:
If we divide 8 by 51, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 51

Moving on to step 2:
The number 51 fits into 81 1 times, leaving a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 51 away from 81, we end up with 30.
Append the next digit (5) from the dividend to 30 and continue with: 305 / 51

Going ahead to step 3:
51 can be fit into 305 5 times, resulting in a remainder of 50.
The next digit of our result is 5. 
Result so far: 15.0
Subtracting 255 from 305 leaves us with 50.
Take the next digit (0) from the dividend and append it to 50, then repeat: 500 / 51

Step 4:
500 divided by 51 is 9 with a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 159.0
If we take 459 away from 500, we end up with 41.
Take the next digit (1) from the dividend and append it to 41, then repeat: 411 / 51

Step 5:
The number 51 fits into 411 8 times, leaving a remainder of 3.
Use 8 as the next digit of our solution. 
Result so far: 1598.0
If we subtract 408 from 411, we get 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 51

Going ahead to step 6:
The number 51 fits into 35 0 times, leaving a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 15980.0
Subtract 0 from 35 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 7:
51 can be fit into 350 6 times, resulting in a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 15980.6
Deduct 306 from 350 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 8:
The number 51 fits into 440 8 times, leaving a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 15980.68
If we subtract 408 from 440, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 9:
320 divided by 51 is 6 with a remainder of 14.
The next digit of our result is 6. 
Result so far: 15980.686
If we subtract 306 from 320, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
When dividing 140 by 51, we get 2 with a remainder of 38.
Record the quotient 2 as the next digit in the result. 
Result so far: 15980.6862
If we take 102 away from 140, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 11:
380 divided by 51 is 7 with a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 15980.68627
If we subtract 357 from 380, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 12:
When dividing 230 by 51, we get 4 with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 15980.686274
The remainder is 26 after subtracting 204 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 13:
When dividing 260 by 51, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 15980.6862745
The remainder is 5 after subtracting 255 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 14:
The number 51 fits into 50 0 times, leaving a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 15980.6862745
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

After the division, we end up with 15980.6862745 and a remainder of 5e-08.