12729877 divided by 578 
We're looking to find how many times 578 goes into 12729877.

Going ahead to step 1:
578 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 578

Step 2:
578 can be fit into 12 0 times, resulting in a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Take the next digit (7) from the dividend and append it to 12, then repeat: 127 / 578

Let's proceed to step 3:
578 can be fit into 127 0 times, resulting in a remainder of 127.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 127, we end up with 127.
Fetch the next digit (2) from the dividend, attach it to 127 and continue: 1272 / 578

Going ahead to step 4:
The number 578 fits into 1272 2 times, leaving a remainder of 116.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1156 from 1272 and we're left with 116.
Append the next digit (9) from the dividend to 116 and continue with: 1169 / 578

Advancing to step 5:
The number 578 fits into 1169 2 times, leaving a remainder of 13.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
Deduct 1156 from 1169 and we're left with 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 578

Let's proceed to step 6:
The number 578 fits into 138 0 times, leaving a remainder of 138.
The next digit of our result is 0. 
Result so far: 220.0
Deduct 0 from 138 and we're left with 138.
Bring next digit (7) of the dividend behind the 138 and repeat the process: 1387 / 578

On to step 7:
578 goes into 1387 2 times with a remainder of 231.
The next digit of our result is 2. 
Result so far: 2202.0
The remainder is 231 after subtracting 1156 from 1387.
Append the next digit (7) from the dividend to 231 and continue with: 2317 / 578

Advancing to step 8:
When dividing 2317 by 578, we get 4 with a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 22024.0
Subtracting 2312 from 2317 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
578 goes into 50 0 times with a remainder of 50.
The next digit of our result is 0. 
Result so far: 22024.0
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.

Moving on to step 10:
500 divided by 578 is 0 with a remainder of 500.
The next digit of our result is 0. 
Result so far: 22024.0
Subtracting 0 from 500 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The final outcome is 22024.0, with a leftover of 0.5.