One bag of milk powder weighs 400 grams, how many bags of milk powder weighs 2 kg.
一袋奶粉重400克，多少袋奶粉重2千克．
<gadget id="calculator">2 * 1_000</gadget>
<output>2_000</output>

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

<result>5</result>