The scale of a map is 1:1000000, and the distance of 10 cm on the map represents the actual distance in kilometers.
一幅地图的比例尺为1：1000000，在图上10厘米的距离表示实际距离多少千米．
<gadget id="calculator">1 / 1_000_000</gadget>
<output>1/1_000_000 = around 0.000001</output>

<gadget id="calculator">10 / (1/1_000_000) / 100_000</gadget>
<output>100</output>

<result>100</result>