A circular bullpen is equipped with a wooden stake every 3.14 meters, and a total of 200 wooden stakes are installed. If a cow occupies an area of 40 square meters, how many cows can this circular bullpen hold at most? (π takes 3.14)
一个圆形的牛栏，每隔3.14米装一根木桩，共装了200根木桩，如果一头牛占地40平方米，那么这个圆形的牛栏最多可以养多少头牛？(π取3.14)
<gadget id="calculator">3.14 * 200</gadget>
<output>628</output>

<gadget id="calculator">628 / 3.14 / 2</gadget>
<output>100</output>

<gadget id="calculator">100 ** 2</gadget>
<output>10_000</output>

<gadget id="calculator">3.14 * 10_000</gadget>
<output>31_400</output>

<gadget id="calculator">31_400 / 40</gadget>
<output>785</output>

<result>785</result>