On a map with a scale of 1:100,000, the distance between the two places is 7.8 cm. How many meters is the distance between the two places?
在一幅比例尺为1：100000的地图上，两得两地之间的距离是7.8厘米，问两地之间的距离是多少米？
<gadget id="calculator">1 / 100_000</gadget>
<output>1/100_000 = around 0.00001</output>

<gadget id="calculator">7.8 / (1/100_000)</gadget>
<output>780_000</output>

<gadget id="calculator">780_000 / 100</gadget>
<output>7_800</output>

<result>7_800</result>