Master Wang processed an average of 730 parts per day in the first two days of a week, and an average of 681 parts per day in the last five days. How many parts are processed per day on average this week? (List the comprehensive formula solution, otherwise no points will be awarded)
王师傅在一周的前2天平均每天加工零件730个，后5天平均每天加工681个．这一周平均每天加工零件多少个？(列综合算式解答，否则不得分)
<gadget id="calculator">2 * 730</gadget>
<output>1_460</output>

<gadget id="calculator">5 * 681</gadget>
<output>3_405</output>

<gadget id="calculator">1_460 + 3_405</gadget>
<output>4_865</output>

<gadget id="calculator">2 + 5</gadget>
<output>7</output>

<gadget id="calculator">4_865 / 7</gadget>
<output>695</output>

<result>695</result>