The highway from Jieshi to Guangzhou is 650 kilometers long. On a map of Guangdong with a scale of 1:5,000,000, what is the length of this highway in centimeters?
碣石到广州的公路长是650千米，如果在一幅比例尺是1：5000000的广东地图上，这条公路长是多少厘米．
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">650 * 100_000 * (1/5_000_000)</gadget>
<output>13</output>

<result>13</result>