Answer
$7 \times 10^6$
Work Step by Step
Express each number in scientific notation to obtain:
$=\dfrac{4.9 \times 10^4}{7 \times10^{-3}}$
Divide 4.9 and 7 together and the powers of 10 together to obtain:
$=\dfrac{4.9}{7} \times \dfrac{10^4}{10^{-3}}
\\=0.7 \times 10^{4-(-3)}
\\=0.7 \times 10^{4+3}
\\=0.7 \times 10^7
\\=(7 \times 10^{-1}) \times 10^7
\\=7 \times 10^{-1+7}
\\=7 \times 10^6$