786873 divided by 51 
We want to divide 786873 by 51.

Moving on to step 1:
51 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 51

Let's proceed to step 2:
51 can be fit into 78 1 times, resulting in a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 51 from 78 leaves us with 27.
Include the next digit (6) from the dividend after 27, then repeat: 276 / 51

Let's proceed to step 3:
If we divide 276 by 51, we get 5 and a remainder of 21.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we take 255 away from 276, we end up with 21.
Fetch the next digit (8) from the dividend, attach it to 21 and continue: 218 / 51

Advancing to step 4:
If we divide 218 by 51, we get 4 and a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 154.0
The remainder is 14 after subtracting 204 from 218.
Grab the next digit (7) from the dividend, add it to 14, then carry on: 147 / 51

On to step 5:
The number 51 fits into 147 2 times, leaving a remainder of 45.
Put 2 as the next digit of the answer. 
Result so far: 1542.0
Subtracting 102 from 147 leaves us with 45.
Fetch the next digit (3) from the dividend, attach it to 45 and continue: 453 / 51

Advancing to step 6:
If we divide 453 by 51, we get 8 and a remainder of 45.
Record the quotient 8 as the next digit in the result. 
Result so far: 15428.0
The remainder is 45 after subtracting 408 from 453.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 7:
51 can be fit into 450 8 times, resulting in a remainder of 42.
The number 8 becomes the next digit in our result. 
Result so far: 15428.8
Deduct 408 from 450 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 8:
If we divide 420 by 51, we get 8 and a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 15428.88
If we subtract 408 from 420, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 15428.88, and the remainder is 0.012.