54297759 ÷ 816 
We want to figure out the number of times 54297759 can be divided by 816.

Let's proceed to step 1:
If we divide 5 by 816, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 816

On to step 2:
816 can be fit into 54 0 times, resulting in a remainder of 54.
Write down 0 as next digit of the result. 
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 / 816

Moving on to step 3:
816 goes into 542 0 times with a remainder of 542.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 542 leaves us with 542.
Bring next digit (9) of the dividend behind the 542 and repeat the process: 5429 / 816

Moving on to step 4:
When dividing 5429 by 816, we get 6 with a remainder of 533.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 4896 from 5429, we get 533.
Fetch the next digit (7) from the dividend, attach it to 533 and continue: 5337 / 816

Let's proceed to step 5:
The number 816 fits into 5337 6 times, leaving a remainder of 441.
Record the quotient 6 as the next digit in the result. 
Result so far: 66.0
Deduct 4896 from 5337 and we're left with 441.
Bring next digit (7) of the dividend behind the 441 and repeat the process: 4417 / 816

Moving on to step 6:
816 goes into 4417 5 times with a remainder of 337.
Write down 5 as next digit of the result. 
Result so far: 665.0
Subtracting 4080 from 4417 leaves us with 337.
Append the next digit (5) from the dividend to 337 and continue with: 3375 / 816

Advancing to step 7:
If we divide 3375 by 816, we get 4 and a remainder of 111.
Put 4 as the next digit of the answer. 
Result so far: 6654.0
The remainder is 111 after subtracting 3264 from 3375.
Bring next digit (9) of the dividend behind the 111 and repeat the process: 1119 / 816

Advancing to step 8:
The number 816 fits into 1119 1 times, leaving a remainder of 303.
The next digit of our result is 1. 
Result so far: 66541.0
Subtract 816 from 1119 to get 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

On to step 9:
816 can be fit into 3030 3 times, resulting in a remainder of 582.
Use 3 as the next digit of our solution. 
Result so far: 66541.3
If we take 2448 away from 3030, we end up with 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Moving on to step 10:
The number 816 fits into 5820 7 times, leaving a remainder of 108.
Write down 7 as next digit of the result. 
Result so far: 66541.37
If we subtract 5712 from 5820, we get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

On to step 11:
816 can be fit into 1080 1 times, resulting in a remainder of 264.
Record the quotient 1 as the next digit in the result. 
Result so far: 66541.371
If we take 816 away from 1080, we end up with 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

On to step 12:
2640 divided by 816 is 3 with a remainder of 192.
Use 3 as the next digit of our solution. 
Result so far: 66541.3713
The remainder is 192 after subtracting 2448 from 2640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Let's proceed to step 13:
When dividing 1920 by 816, we get 2 with a remainder of 288.
The number 2 becomes the next digit in our result. 
Result so far: 66541.37132
If we take 1632 away from 1920, we end up with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

On to step 14:
816 can be fit into 2880 3 times, resulting in a remainder of 432.
The number 3 becomes the next digit in our result. 
Result so far: 66541.371323
Subtract 2448 from 2880 to get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Moving on to step 15:
4320 divided by 816 is 5 with a remainder of 240.
Put 5 as the next digit of the answer. 
Result so far: 66541.3713235
The remainder is 240 after subtracting 4080 from 4320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 16:
If we divide 2400 by 816, we get 2 and a remainder of 768.
Record the quotient 2 as the next digit in the result. 
Result so far: 66541.37132352
If we subtract 1632 from 2400, we get 768.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7680, and continue the process.

The final result is 66541.37132352 with a remainder of 7.68e-07.