To multiply powers of the same base, add their exponents. Add $-7$ and $-7$ to get $-14$.
$$|2\times 10^{-14}\times 4.5|$$
Calculate $10$ to the power of $-14$ and get $\frac{1}{100000000000000}$.
$$|2\times \frac{1}{100000000000000}\times 4.5|$$
Multiply $2$ and $\frac{1}{100000000000000}$ to get $\frac{1}{50000000000000}$.
$$|\frac{1}{50000000000000}\times 4.5|$$
Multiply $\frac{1}{50000000000000}$ and $4.5$ to get $\frac{9}{100000000000000}$.
$$|\frac{9}{100000000000000}|$$
The absolute value of a real number $a$ is $a$ when $a\geq 0$, or $-a$ when $a<0$. The absolute value of $\frac{9}{100000000000000}$ is $\frac{9}{100000000000000}$.