Scientific notation is using a short handed way to make really large or really small numbers easier to write/display.
The E here is actually "x 10 raised to the exponent of" or "10^"
So this would be 1.1 x 10^-4 (that's 10 raised to the negative fourth power)
10^-4 is the same as 1 / 10^4
10^4 is = to 10*10*10*10 or 10,000. Raising 10 to a power means you can just put down a 1 and follow it with zeroes equal to the number of the power.
so ... now you have 1.1 x ( 1 / 10,000)
which = 1.1 x .0001
which = .00011
NOW for the quick and dirty way ... since the Exponent above is -4 ... move the decimal place 4 places to the left.
what do you get? .00011!
if the Exponent was positive, you can just move the decimal place that many places to the right!