We're dividing 51249950 by 77 
We want to divide 51249950 by 77.

Advancing to step 1:
77 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 77

Step 2:
77 can be fit into 51 0 times, resulting in a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Take the next digit (2) from the dividend and append it to 51, then repeat: 512 / 77

Moving on to step 3:
77 goes into 512 6 times with a remainder of 50.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 462 from 512, we get 50.
Take the next digit (4) from the dividend and append it to 50, then repeat: 504 / 77

Step 4:
504 divided by 77 is 6 with a remainder of 42.
Write down 6 as next digit of the result. 
Result so far: 66.0
If we subtract 462 from 504, we get 42.
Include the next digit (9) from the dividend after 42, then repeat: 429 / 77

Moving on to step 5:
77 can be fit into 429 5 times, resulting in a remainder of 44.
Write down 5 as next digit of the result. 
Result so far: 665.0
Subtracting 385 from 429 leaves us with 44.
Bring next digit (9) of the dividend behind the 44 and repeat the process: 449 / 77

On to step 6:
449 divided by 77 is 5 with a remainder of 64.
Record the quotient 5 as the next digit in the result. 
Result so far: 6655.0
The remainder is 64 after subtracting 385 from 449.
Append the next digit (5) from the dividend to 64 and continue with: 645 / 77

Let's proceed to step 7:
When dividing 645 by 77, we get 8 with a remainder of 29.
Record the quotient 8 as the next digit in the result. 
Result so far: 66558.0
If we subtract 616 from 645, we get 29.
Include the next digit (0) from the dividend after 29, then repeat: 290 / 77

Moving on to step 8:
77 can be fit into 290 3 times, resulting in a remainder of 59.
The number 3 becomes the next digit in our result. 
Result so far: 665583.0
The remainder is 59 after subtracting 231 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 9:
590 divided by 77 is 7 with a remainder of 51.
The next digit of our result is 7. 
Result so far: 665583.7
If we subtract 539 from 590, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 10:
If we divide 510 by 77, we get 6 and a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 665583.76
The remainder is 48 after subtracting 462 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 11:
480 divided by 77 is 6 with a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 665583.766
The remainder is 18 after subtracting 462 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Our division results in 665583.766 with a remaining 0.0018.