\((935421 \times 625) = ?\)
Answer: B
\(935421 \times 625\\ = 935421 \times 5^{4}\\ =935421 \times \left ( \dfrac{10}{2} \right )^{4}\\ =\dfrac{935421 \times 10^{4}}{2^{4}}\\ =\dfrac{9354210000}{16}\\ =584638125\)