(123456+234561+345612+456123+561234+612345)/7=how much.
(123456+234561+345612+456123+561234+612345)/7=多少．
<gadget id="calculator">123_456 + 234_561 + 345_612 + 456_123 + 561_234 + 612_345</gadget>
<output>2_333_331</output>

<gadget id="calculator">2_333_331 / 7</gadget>
<output>333_333</output>

<result>333_333</result>