COL A has 1,313 cells whose contents look like this:

107211009-1
114650003-4
122413021-6

COL B has 987,601 cells whose contents look like this:

008100465-2 01 58.86
008100465-2 02 58.86
008100493-7 01 16.12

How do I find the cell(s) in COL B whose eleven left-most characters
match the contents in the cells in COL A?