How do you multiply 77.22 x .8 ? with the work shown

first line up the decimals

     77.22

        .80

then multiply don't forget to add your decimal when you finish and the answer is 6177.60

Multiply the numbers once you get the answer count how many times the decimal was moved  it would be five place the decimal in your answer

Bat wings and bird wings are analogous as flight structures: their structure and function have evolved by different routes from a flightless reptilian ancestor. Note for example that a good portion of the flight surface in bats consists of a membrane stretched between the extended digits (chiropatagium), whereas the digits of the bird are relatively small and do not support the flight surface.