A toy factory produces a batch of toys. The production of toy robots is 3600, which is 4 times that of toy cars. How many toy cars are produced? (answer in two ways)
玩具厂生产一批玩具．生产玩具机器人3600个，是生产玩具小汽车的4倍．生产玩具小汽车多少个？(用两种方法解答)
<gadget id="calculator">3_600 / 4</gadget>
<output>900</output>

<result>900</result>