idk help

whats is 2817291cm*1212km

$\small{ \begin{array}{rcll} 2817291\ cm \cdot 1212\ km &=& 2817291\ cm \cdot \frac{1\ m}{100\ cm} \cdot \frac{1\ km}{1000\ m}\cdot 1212\ km \\ &=& 28.17291\ km \cdot 1212\ km \\ &=& 34145.56692\ km^2 \\ \end{array} }$