A bag of milk powder is 200 grams, how many bags of milk powder weigh 4 kg.
一袋奶粉200克，多少袋袋奶粉重4千克．
<gadget id="calculator">4 * 1_000</gadget>
<output>4_000</output>

<gadget id="calculator">4_000 / 200</gadget>
<output>20</output>

<result>20</result>