54807151 ÷ 660 
We want to figure out the number of times 54807151 can be divided by 660.

Let's proceed to step 1:
660 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 660

Moving on to step 2:
When dividing 54 by 660, we get 0 with a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 54, we end up with 54.
Bring next digit (8) of the dividend behind the 54 and repeat the process: 548 / 660

Let's proceed to step 3:
660 can be fit into 548 0 times, resulting in a remainder of 548.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 548 leaves us with 548.
Fetch the next digit (0) from the dividend, attach it to 548 and continue: 5480 / 660

Advancing to step 4:
When dividing 5480 by 660, we get 8 with a remainder of 200.
Write down 8 as next digit of the result. 
Result so far: 8.0
Deduct 5280 from 5480 and we're left with 200.
Bring next digit (7) of the dividend behind the 200 and repeat the process: 2007 / 660

Advancing to step 5:
660 goes into 2007 3 times with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 83.0
The remainder is 27 after subtracting 1980 from 2007.
Take the next digit (1) from the dividend and append it to 27, then repeat: 271 / 660

Moving on to step 6:
271 divided by 660 is 0 with a remainder of 271.
Put 0 as the next digit of the answer. 
Result so far: 830.0
If we subtract 0 from 271, we get 271.
Fetch the next digit (5) from the dividend, attach it to 271 and continue: 2715 / 660

Moving on to step 7:
The number 660 fits into 2715 4 times, leaving a remainder of 75.
Put 4 as the next digit of the answer. 
Result so far: 8304.0
The remainder is 75 after subtracting 2640 from 2715.
Bring next digit (1) of the dividend behind the 75 and repeat the process: 751 / 660

Step 8:
660 goes into 751 1 times with a remainder of 91.
Record the quotient 1 as the next digit in the result. 
Result so far: 83041.0
Subtracting 660 from 751 leaves us with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 9:
The number 660 fits into 910 1 times, leaving a remainder of 250.
Put 1 as the next digit of the answer. 
Result so far: 83041.1
The remainder is 250 after subtracting 660 from 910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 10:
The number 660 fits into 2500 3 times, leaving a remainder of 520.
Put 3 as the next digit of the answer. 
Result so far: 83041.13
Subtracting 1980 from 2500 leaves us with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 11:
When dividing 5200 by 660, we get 7 with a remainder of 580.
Write down 7 as next digit of the result. 
Result so far: 83041.137
Deduct 4620 from 5200 and we're left with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Moving on to step 12:
If we divide 5800 by 660, we get 8 and a remainder of 520.
Record the quotient 8 as the next digit in the result. 
Result so far: 83041.1378
The remainder is 520 after subtracting 5280 from 5800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Let's proceed to step 13:
660 can be fit into 5200 7 times, resulting in a remainder of 580.
The next digit of our result is 7. 
Result so far: 83041.13787
Subtract 4620 from 5200 to get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Step 14:
When dividing 5800 by 660, we get 8 with a remainder of 520.
Use 8 as the next digit of our solution. 
Result so far: 83041.137878
If we subtract 5280 from 5800, we get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Let's proceed to step 15:
660 can be fit into 5200 7 times, resulting in a remainder of 580.
Write down 7 as next digit of the result. 
Result so far: 83041.1378787
If we subtract 4620 from 5200, we get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Step 16:
660 can be fit into 5800 8 times, resulting in a remainder of 520.
The next digit of our result is 8. 
Result so far: 83041.13787878
The remainder is 520 after subtracting 5280 from 5800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

The final result is 83041.13787878 with a remainder of 5.2e-07.