Answer
$6.232 \times 10^{-11}$ cubic meters.
Work Step by Step
$3.8 \times 10^{-6} \times 1.64 \times 10^{-5}$
$= 3.8 \times 1.64 \times 10^{-5} \times 10^{-6}$
$= 3.8 \times 1.64 \times 10^{-11}$ Using $[a^{m} \times a^{n} = a^{m+n}]$
$=6.232 \times 10^{-11}$ cubic meters.