For this, we will be using dimensional analysis as such:
[tex] \frac{24900\ mi}{1}*\frac{5280\ ft}{1\ mi}*\frac{12\ in}{1\ ft}*\frac{2.54\ cm}{1\ in}*\frac{1\ m}{100\ cm}=\frac{4007266560}{100}=40072665.6\ m [/tex]
In short, 24,900 miles is 40,072,665.6 (40,072,666 if rounded to the whole meter) meters.