Bright Milk is running a promotion. Buy 4 large boxes of 800mL yogurt and get 1 small bag of 220mL yogurt for free. If a small mother buys 8 large boxes of yogurt, how many milliliters of yogurt can she get in total?
光明牛奶搞促销，买4大盒800mL的酸奶送1小包220mL的酸奶，小巧的妈妈买了8大盒酸奶，一共可以得到多少毫升酸奶？
<gadget id="calculator">800 * 8</gadget>
<output>6_400</output>

<gadget id="calculator">220 * 2</gadget>
<output>440</output>

<gadget id="calculator">6_400 + 440</gadget>
<output>6_840</output>

<result>6_840</result>