The perimeter of a square paddy field is 800 meters, and the harvested rice per hectare is 6,500 kilograms. How many kilograms of rice can be harvested in this field?
一块正方形稻谷地的周长是800米，每公顷收稻谷6500千克，那么这块地收稻谷多少千克？
<gadget id="calculator">800 / 4</gadget>
<output>200</output>

<gadget id="calculator">800 / 4 / 10_000</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">200 * (1/50) * 6_500</gadget>
<output>26_000</output>

<result>26_000</result>