$$\frac{(0.00042\times10^{-8})(15,000)}{5000\times10^{7})(0.0021\times10^{14})}$$
$\frac{9}{2505250000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000}\approx 3.592455843 \cdot 10^{-231}$
$\frac{3 ^ {2}}{11 \cdot 911 \cdot 2 ^ {226} \cdot 5 ^ {228}} = 3.5924558427302666 \times 10^{-231}$