We're dividing 77447839 by 505 
We want to figure out the number of times 77447839 can be divided by 505.

Advancing to step 1:
If we divide 7 by 505, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 505

On to step 2:
If we divide 77 by 505, we get 0 and a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Fetch the next digit (4) from the dividend, attach it to 77 and continue: 774 / 505

Going ahead to step 3:
505 goes into 774 1 times with a remainder of 269.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 505 away from 774, we end up with 269.
Include the next digit (4) from the dividend after 269, then repeat: 2694 / 505

Let's proceed to step 4:
If we divide 2694 by 505, we get 5 and a remainder of 169.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 2525 from 2694 and we're left with 169.
Bring next digit (7) of the dividend behind the 169 and repeat the process: 1697 / 505

On to step 5:
1697 divided by 505 is 3 with a remainder of 182.
Record the quotient 3 as the next digit in the result. 
Result so far: 153.0
If we take 1515 away from 1697, we end up with 182.
Grab the next digit (8) from the dividend, add it to 182, then carry on: 1828 / 505

Step 6:
The number 505 fits into 1828 3 times, leaving a remainder of 313.
Write down 3 as next digit of the result. 
Result so far: 1533.0
If we take 1515 away from 1828, we end up with 313.
Append the next digit (3) from the dividend to 313 and continue with: 3133 / 505

Step 7:
The number 505 fits into 3133 6 times, leaving a remainder of 103.
Use 6 as the next digit of our solution. 
Result so far: 15336.0
Deduct 3030 from 3133 and we're left with 103.
Fetch the next digit (9) from the dividend, attach it to 103 and continue: 1039 / 505

On to step 8:
If we divide 1039 by 505, we get 2 and a remainder of 29.
The next digit of our result is 2. 
Result so far: 153362.0
Subtract 1010 from 1039 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 9:
The number 505 fits into 290 0 times, leaving a remainder of 290.
Put 0 as the next digit of the answer. 
Result so far: 153362.0
If we take 0 away from 290, we end up with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

On to step 10:
If we divide 2900 by 505, we get 5 and a remainder of 375.
Write down 5 as next digit of the result. 
Result so far: 153362.05
Deduct 2525 from 2900 and we're left with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

On to step 11:
The number 505 fits into 3750 7 times, leaving a remainder of 215.
The number 7 becomes the next digit in our result. 
Result so far: 153362.057
The remainder is 215 after subtracting 3535 from 3750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Moving on to step 12:
2150 divided by 505 is 4 with a remainder of 130.
Write down 4 as next digit of the result. 
Result so far: 153362.0574
Subtract 2020 from 2150 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 13:
1300 divided by 505 is 2 with a remainder of 290.
Put 2 as the next digit of the answer. 
Result so far: 153362.05742
The remainder is 290 after subtracting 1010 from 1300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Advancing to step 14:
505 can be fit into 2900 5 times, resulting in a remainder of 375.
The number 5 becomes the next digit in our result. 
Result so far: 153362.057425
Subtracting 2525 from 2900 leaves us with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Advancing to step 15:
505 goes into 3750 7 times with a remainder of 215.
Use 7 as the next digit of our solution. 
Result so far: 153362.0574257
Subtract 3535 from 3750 to get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Step 16:
If we divide 2150 by 505, we get 4 and a remainder of 130.
The next digit of our result is 4. 
Result so far: 153362.05742574
Deduct 2020 from 2150 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

The final outcome is 153362.05742574, with a leftover of 1.3e-07.