Question

What is 86.8954776543 rounded to the nearest millionth/ show work

Answer 1

Count  7 places from the decimal point ( to the right).  That gives you the number 6.  This is >= 5 so you add 1 to the previous digit  

Answer = 86.895478   to nearest millionth.

Answer 2

86.8954776543 rounded to the nearest millionth is 86.895478


The order after the decimal point goes like this:

tenths, hundredths, thousandths, ten thousandths, hundred thousandths, millionth