54261288 ÷ 78 
We want to divide 54261288 by 78.

Advancing to step 1:
The number 78 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 78

Step 2:
78 can be fit into 54 0 times, resulting in a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Bring next digit (2) of the dividend behind the 54 and repeat the process: 542 / 78

Advancing to step 3:
542 divided by 78 is 6 with a remainder of 74.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Deduct 468 from 542 and we're left with 74.
Bring next digit (6) of the dividend behind the 74 and repeat the process: 746 / 78

Going ahead to step 4:
The number 78 fits into 746 9 times, leaving a remainder of 44.
The next digit of our result is 9. 
Result so far: 69.0
If we take 702 away from 746, we end up with 44.
Fetch the next digit (1) from the dividend, attach it to 44 and continue: 441 / 78

Step 5:
When dividing 441 by 78, we get 5 with a remainder of 51.
Use 5 as the next digit of our solution. 
Result so far: 695.0
If we subtract 390 from 441, we get 51.
Fetch the next digit (2) from the dividend, attach it to 51 and continue: 512 / 78

Going ahead to step 6:
If we divide 512 by 78, we get 6 and a remainder of 44.
The next digit of our result is 6. 
Result so far: 6956.0
Subtract 468 from 512 to get 44.
Grab the next digit (8) from the dividend, add it to 44, then carry on: 448 / 78

Moving on to step 7:
When dividing 448 by 78, we get 5 with a remainder of 58.
The next digit of our result is 5. 
Result so far: 69565.0
If we take 390 away from 448, we end up with 58.
Append the next digit (8) from the dividend to 58 and continue with: 588 / 78

Moving on to step 8:
78 can be fit into 588 7 times, resulting in a remainder of 42.
Use 7 as the next digit of our solution. 
Result so far: 695657.0
Deduct 546 from 588 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 9:
When dividing 420 by 78, we get 5 with a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 695657.5
The remainder is 30 after subtracting 390 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
The number 78 fits into 300 3 times, leaving a remainder of 66.
Record the quotient 3 as the next digit in the result. 
Result so far: 695657.53
The remainder is 66 after subtracting 234 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 11:
If we divide 660 by 78, we get 8 and a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 695657.538
Subtract 624 from 660 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 12:
If we divide 360 by 78, we get 4 and a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 695657.5384
Subtracting 312 from 360 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 13:
480 divided by 78 is 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 695657.53846
Subtracting 468 from 480 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 14:
If we divide 120 by 78, we get 1 and a remainder of 42.
Record the quotient 1 as the next digit in the result. 
Result so far: 695657.538461
If we take 78 away from 120, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 15:
420 divided by 78 is 5 with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 695657.5384615
If we take 390 away from 420, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 16:
78 goes into 300 3 times with a remainder of 66.
Write down 3 as next digit of the result. 
Result so far: 695657.53846153
The remainder is 66 after subtracting 234 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

After the division, we end up with 695657.53846153 and a remainder of 6.6e-08.