A production team produced a batch of parts, and produced 180 in the first 6 days. According to this calculation, it took another 15 days to produce. How many parts are there in this batch?
某生产小组生产一批零件，前6天生产180个，照这样计算，又生产了15天，这批零件一共有多少个？
<gadget id="calculator">180 / 6</gadget>
<output>30</output>

<gadget id="calculator">6 + 15</gadget>
<output>21</output>

<gadget id="calculator">30 * 21</gadget>
<output>630</output>

<result>630</result>