Step 1: Since 300000000 do not have a decimal point, we will add one at the end of the number 300000000.
300000000.
Step 2: Move the decimal point from its current position (the black dot) to a position immediately to the right of the first nonzero digit (the red dot).
3.00000000.
Step 3: We moved the decimal point 8 spaces to the right. Therefore, the exponent on base 10 will be positive 8.Now we know that the:
Mantissa = 3.00000000 (which can be written as 3 )
Exponent = 8
So, the solution is:
$$300000000 = \color{blue}{ 3 } \cdot 10^{ \color{red}{ 8 }}$$