$\frac{ 2.4 }{ 4 } \times \frac{ {10}^{-13} }{ {10}^{5} }$
Divide the numbers$0.6 \times \frac{ {10}^{-13} }{ {10}^{5} }$
Divide the terms with the same base by subtracting their exponents$0.6 \times {10}^{-13-5}$
Calculate the difference$0.6 \times {10}^{-18}$
Write the number in scientific notation$6 \times {10}^{-19}$