How scientific notation works
A number in scientific notation has the form a x 10^n, where a is between 1 and 10 and n is an integer. To convert a large number, move the decimal point left until only one non-zero digit remains before it, and count the positions moved: 93,000,000 becomes 9.3 x 10^7. For small numbers, move the decimal right and use a negative exponent: 0.00042 becomes 4.2 x 10^-4.
Multiplication in scientific notation multiplies the coefficients and adds the exponents: (3 x 10^4) x (2 x 10^3) = 6 x 10^7. Division divides the coefficients and subtracts the exponents.
a x 10^n (where 1 <= a < 10)
Standard scientific notation: a coefficient between 1 and 10 multiplied by a power of 10.