1. Move the decimal point to the right until you have a number between 1 and 10. In this case, we need to move the decimal point four places to the right: 6.19
2. Count the number of places you moved the decimal point. We moved it four places.
3. Express the result as a number between 1 and 10 multiplied by 10 raised to the power of the number of places you moved the decimal. Since we moved it four places to the right, the exponent is -4.
Therefore, the scientific notation of 0.000619 is 6.19 x 10⁻⁴.
