You do absolutely NOTHING! 1014 is already in decimal form. A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point.
Rounded to three decimal places, (2998 x 108) / (510 x 1014) = 0.626
You turn a fraction into a decimal by dividing the top number by the bottom. And you turn a decimal into a percent by multiplying the decimal by 100.
Press Function Key+ F11
It is a decimal.
1014 is equal to 1014; no other number is equal to it.
0.02 is a decimal.
23.8 is a decimal.
0.45 is a decimal.
0.604 is a decimal!
Each side would be 10.04645057 cm (to eight decimal places !)
To turn a fraction into a decimal, simply divide the numerator by the denominator.
54 into a decimal = 54.0