55978278 ÷ 915 
We want to divide 55978278 by 915.

Advancing to step 1:
915 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 915

Let's proceed to step 2:
The number 915 fits into 55 0 times, leaving a remainder of 55.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Take the next digit (9) from the dividend and append it to 55, then repeat: 559 / 915

Advancing to step 3:
If we divide 559 by 915, we get 0 and a remainder of 559.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 559 after subtracting 0 from 559.
Bring next digit (7) of the dividend behind the 559 and repeat the process: 5597 / 915

Let's proceed to step 4:
The number 915 fits into 5597 6 times, leaving a remainder of 107.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 5490 away from 5597, we end up with 107.
Append the next digit (8) from the dividend to 107 and continue with: 1078 / 915

Moving on to step 5:
When dividing 1078 by 915, we get 1 with a remainder of 163.
The next digit of our result is 1. 
Result so far: 61.0
Subtracting 915 from 1078 leaves us with 163.
Take the next digit (2) from the dividend and append it to 163, then repeat: 1632 / 915

Going ahead to step 6:
1632 divided by 915 is 1 with a remainder of 717.
Write down 1 as next digit of the result. 
Result so far: 611.0
Deduct 915 from 1632 and we're left with 717.
Fetch the next digit (7) from the dividend, attach it to 717 and continue: 7177 / 915

On to step 7:
7177 divided by 915 is 7 with a remainder of 772.
Put 7 as the next digit of the answer. 
Result so far: 6117.0
Subtracting 6405 from 7177 leaves us with 772.
Take the next digit (8) from the dividend and append it to 772, then repeat: 7728 / 915

Going ahead to step 8:
7728 divided by 915 is 8 with a remainder of 408.
Put 8 as the next digit of the answer. 
Result so far: 61178.0
If we subtract 7320 from 7728, we get 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Step 9:
915 goes into 4080 4 times with a remainder of 420.
Put 4 as the next digit of the answer. 
Result so far: 61178.4
Subtract 3660 from 4080 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 10:
4200 divided by 915 is 4 with a remainder of 540.
Use 4 as the next digit of our solution. 
Result so far: 61178.44
The remainder is 540 after subtracting 3660 from 4200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

The final outcome is 61178.44, with a leftover of 0.54.