Question

334,290,652 value of first digit

Answer 1

the value is three hundred million
 (ones) (tens) (hundreds)
             ↓↓↓
three →334,290,625
                  ↑      ↑
          (millions) (thousands)
t

Answer 2

We know that the value of a digit depends on its place / position, in the number.Each place has a value of 10 times the place to its right. 

The digit 3 is in the billions place. A billion is $10^9 = 1,000,000,000,$