The factory used to manufacture 1,800 machine parts every day, but now the number of parts manufactured every day is 10% less than before. How many machine parts are manufactured every day?
工厂原来每天制造机器零件1800个，现在每天制造的个数比原来少10%．现在每天制造机器零件多少个？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1_800 * (9/10)</gadget>
<output>1_620</output>

<result>1_620</result>