What is 7 0 0 , 0 0 0 + 9 , 0 0 0 + 6 0 + 7 700,000+9,000+60+7700, comma, 000, plus, 9, comma, 000, plus, 60, plus, 7 in standard form?

700000 + 9000 + 60 + 7 = 709,067 

Standard form is given by A×10ⁿ
Where:
A = Unit
n = Integers

To make 709,067 as unit, we need to divide it by 100000
709067 ÷ 100000 = 7.09067
But we mustn't change the actual value, so we will multiply 7.09067 by 100000

7.09067 × 100000
7.09067 × 10⁵ ⇒ This is the standard form