Answer
$1.1 \times 10^{7}$
Work Step by Step
Write the numerator and the denominator in scientific notation to obtain:
$=\dfrac{(6.6 \times 10^{4}) \times (1 \times 10^{-3})}{(3 \times 10^{-3}) \times (2 \times 10^{-3})}$
Multiply the corresponding parts of the numerator and of the denominator to obtain:
$=\dfrac{6.6 \times 10^{4+(-3)}}{6 \times 10^{-3+(-3)}}
\\=\dfrac{6.6 \times 10^{1}}{6 \times 10^{-6}}$
Divide the corresponding parts to obtain:
$=\dfrac{6.6}{6} \times \dfrac{10^{1}}{10^{-6}}
\\=1.1 \times 10^{1-(-6)}
\\=1.1 \times 10^{1+6}
\\=1.1 \times 10^{7}$
