Master Wang plans to start processing a batch of parts on May 4th. If 86 parts are processed every day, how many parts will be processed in total by May 31st?
王师傅打算5月4日开始加工一批零件，如果每天加工86个零件，到5月31日一共加工多少个零件？
<gadget id="calculator">31 - 4</gadget>
<output>27</output>

<gadget id="calculator">27 + 1</gadget>
<output>28</output>

<gadget id="calculator">86 * 28</gadget>
<output>2_408</output>

<result>2_408</result>