A 2L bottle of orange juice can just fill 5 cups, how many milliliters of orange juice can be filled in each cup.
一瓶2L的橙汁，正好可以倒满5杯，每杯可装橙汁多少毫升．
<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

<gadget id="calculator">2_000 / 5</gadget>
<output>400</output>

<result>400</result>