We're dividing 77977935 by 51 
Let's see how many times 51 fits into 77977935.

Advancing to step 1:
7 divided by 51 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 51

On to step 2:
The number 51 fits into 77 1 times, leaving a remainder of 26.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 51 from 77 leaves us with 26.
Include the next digit (9) from the dividend after 26, then repeat: 269 / 51

Step 3:
When dividing 269 by 51, we get 5 with a remainder of 14.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 255 from 269 and we're left with 14.
Append the next digit (7) from the dividend to 14 and continue with: 147 / 51

Advancing to step 4:
If we divide 147 by 51, we get 2 and a remainder of 45.
Write down 2 as next digit of the result. 
Result so far: 152.0
If we subtract 102 from 147, we get 45.
Append the next digit (7) from the dividend to 45 and continue with: 457 / 51

Let's proceed to step 5:
The number 51 fits into 457 8 times, leaving a remainder of 49.
Use 8 as the next digit of our solution. 
Result so far: 1528.0
Subtract 408 from 457 to get 49.
Bring next digit (9) of the dividend behind the 49 and repeat the process: 499 / 51

Moving on to step 6:
If we divide 499 by 51, we get 9 and a remainder of 40.
Put 9 as the next digit of the answer. 
Result so far: 15289.0
The remainder is 40 after subtracting 459 from 499.
Fetch the next digit (3) from the dividend, attach it to 40 and continue: 403 / 51

Let's proceed to step 7:
When dividing 403 by 51, we get 7 with a remainder of 46.
The next digit of our result is 7. 
Result so far: 152897.0
Subtracting 357 from 403 leaves us with 46.
Take the next digit (5) from the dividend and append it to 46, then repeat: 465 / 51

Going ahead to step 8:
51 can be fit into 465 9 times, resulting in a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 1528979.0
Subtract 459 from 465 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
If we divide 60 by 51, we get 1 and a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1528979.1
Deduct 51 from 60 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 10:
The number 51 fits into 90 1 times, leaving a remainder of 39.
The next digit of our result is 1. 
Result so far: 1528979.11
Subtracting 51 from 90 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final result is 1528979.11 with a remainder of 0.039.