54242478 ÷ 800 
We're looking to find how many times 800 goes into 54242478.

Let's proceed to step 1:
If we divide 5 by 800, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 800

Advancing to step 2:
When dividing 54 by 800, we get 0 with a remainder of 54.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Grab the next digit (2) from the dividend, add it to 54, then carry on: 542 / 800

Step 3:
800 goes into 542 0 times with a remainder of 542.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 542, we get 542.
Fetch the next digit (4) from the dividend, attach it to 542 and continue: 5424 / 800

Going ahead to step 4:
800 can be fit into 5424 6 times, resulting in a remainder of 624.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we take 4800 away from 5424, we end up with 624.
Grab the next digit (2) from the dividend, add it to 624, then carry on: 6242 / 800

Going ahead to step 5:
If we divide 6242 by 800, we get 7 and a remainder of 642.
Record the quotient 7 as the next digit in the result. 
Result so far: 67.0
Subtract 5600 from 6242 to get 642.
Include the next digit (4) from the dividend after 642, then repeat: 6424 / 800

On to step 6:
The number 800 fits into 6424 8 times, leaving a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 678.0
If we subtract 6400 from 6424, we get 24.
Bring next digit (7) of the dividend behind the 24 and repeat the process: 247 / 800

Step 7:
800 goes into 247 0 times with a remainder of 247.
Put 0 as the next digit of the answer. 
Result so far: 6780.0
If we subtract 0 from 247, we get 247.
Grab the next digit (8) from the dividend, add it to 247, then carry on: 2478 / 800

Advancing to step 8:
800 can be fit into 2478 3 times, resulting in a remainder of 78.
The next digit of our result is 3. 
Result so far: 67803.0
If we take 2400 away from 2478, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 9:
The number 800 fits into 780 0 times, leaving a remainder of 780.
Record the quotient 0 as the next digit in the result. 
Result so far: 67803.0
If we subtract 0 from 780, we get 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

Going ahead to step 10:
7800 divided by 800 is 9 with a remainder of 600.
Record the quotient 9 as the next digit in the result. 
Result so far: 67803.09
Subtracting 7200 from 7800 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Advancing to step 11:
The number 800 fits into 6000 7 times, leaving a remainder of 400.
Use 7 as the next digit of our solution. 
Result so far: 67803.097
The remainder is 400 after subtracting 5600 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 12:
If we divide 4000 by 800, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 67803.0975
If we take 4000 away from 4000, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 13:
The number 800 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 67803.0975
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 14:
0 divided by 800 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 67803.0975
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 67803.0975 and a remainder of 0.0.