The distance between Dongguan City and Wuhan on the map is 8 cm, and the scale is 1:80000000. How many kilometers is the actual distance?
东莞城到武汉的图上距离是8厘米，比例尺是1：80000000，它的实际距离是多少千米？
<gadget id="calculator">1 / 80_000_000</gadget>
<output>1/80_000_000 = around 0</output>

<gadget id="calculator">8 / (1/80_000_000) / 100_000</gadget>
<output>6_400</output>

<result>6_400</result>