To convert the whole number 2716 to a decimal using long division, we actually need to divide it by a power of 10, depending on what you're trying to express. However, if you're simply looking to express it as a decimal number, you would just write it as 2716.0.
But if you're looking for the decimal conversion of the fraction \( \frac{2716}{1000} \), this is equivalent to moving the decimal point three places to the left, since 1000 is \( 10^3 \). This gives us:
\[ 2716 \div 1000 = 2.716 \]
Thus, if we interpret the question as needing to divide 2716 by 1000, the decimal equivalent would be 2.716.
So the answer from the given options is:
2.716.