When Xiao Ma did the multiplication calculation, he regarded one of the factors of 45 as 54, and the resulting product was 180 more than the correct product. What should be the correct product?
小马做乘法计算时，把其中一个因数45看成了54，结果得到的积比正确的积多了180．正确的积应该是多少？
<gadget id="calculator">54 - 45</gadget>
<output>9</output>

<gadget id="calculator">180 / 9</gadget>
<output>20</output>

<gadget id="calculator">45 * 20</gadget>
<output>900</output>

<result>900</result>