On a map with a scale of 1:800,000, how many centimeters should the actual distance of 56 kilometers be drawn.
在一幅比例尺是1：800,000的地图上，表示56千米的实际距离应画多少厘米．
<gadget id="calculator">800 * 1_000</gadget>
<output>800_000</output>

<gadget id="calculator">1 / 800_000</gadget>
<output>1/800_000 = around 0.000001</output>

<gadget id="calculator">5_600_000 * (1/800_000)</gadget>
<output>7</output>

<result>7</result>