$\frac{ 7.2 }{ 3 } \times \frac{ {10}^{-8} }{ {10}^{-2} }$
Divide the numbers$2.4 \times \frac{ {10}^{-8} }{ {10}^{-2} }$
Divide the terms with the same base by subtracting their exponents$2.4 \times {10}^{-8-\left( -2 \right)}$
When there is a $-$ in front of an expression in parentheses, change the sign of each term of the expression and remove the parentheses$2.4 \times {10}^{-8+2}$
Calculate the sum$2.4 \times {10}^{-6}$