An 800ml bottle of beer can fill 4 identical glasses, and how many such glasses can be filled with a 2 liter bottle of fruit juice.
一瓶800毫升的啤酒可以倒满4个同样的杯子，一瓶2升的果汁可以倒满多少个这样的杯子．
<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

<gadget id="calculator">800 / 4</gadget>
<output>200</output>

<gadget id="calculator">2_000 / 200</gadget>
<output>10</output>

<result>10</result>