To convert from meters to kilometers, you divide the number of meters by 1,000 (since 1 kilometer is equal to 1,000 meters).
Starting with the value:
\[ 3.875 \times 10^9 \text{ meters} \]
we convert it to kilometers:
\[ \frac{3.875 \times 10^9 \text{ meters}}{1,000} = 3.875 \times 10^9 \div 10^3 = 3.875 \times 10^{9-3} = 3.875 \times 10^6 \text{ kilometers} \]
So,
\[ 3.875 \times 10^9 \text{ meters} = 3.875 \times 10^6 \text{ kilometers} \]
The final answer is:
\[ 3.875 \times 10^6 \text{ kilometers} \]