The product of multiplying two numbers is 45, one factor is enlarged to 20 times the original factor, and the other factor remains unchanged. What is the product at this time?
两个数相乘的积是45，一个因数扩大到原来的20倍，另一个因数不变，这时积是多少．
<gadget id="calculator">45 * 20</gadget>
<output>900</output>

<result>900</result>