A total of 810.6 kilograms of eggs were produced this Monday, and 101.8 kilograms per day in the first three days. How many kilograms of eggs were produced on average per day in the next four days?
本星期一共产鸡蛋810.6千克，前3天每天101.8千克，后四天平均每天生产多少千克鸡蛋？
<gadget id="calculator">101.8 * 3</gadget>
<output>305.4</output>

<gadget id="calculator">810.6 - 305.4</gadget>
<output>505.2</output>

<gadget id="calculator">505.2 / 4</gadget>
<output>126.3</output>

<result>126.3</result>