The goods weighing 4 tons are transported 5 times and just finished transporting, how many kilograms are transported each time.
重4吨的货物运5次正好运完，每次运多少千克．
<gadget id="calculator">4 * 1_000</gadget>
<output>4_000</output>

<gadget id="calculator">4_000 / 5</gadget>
<output>800</output>

<result>800</result>