Partial Match - Mac characters match

Hello,

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In the shown image, I need formula for cell E2 value.

I want to match 10055 in column A and return column B value. Row 2,4 and 5 all have 10055 number within them. But I want to match it to row 4. This is because A4 cell has 10 characters in total and it has the highest % match among others. A2 cell has 12 characters and A5 has 15 characters.

Is there a way to do it? I have shown simple example with numbers. Sometime I have table with text as well. Can any one help with this?

Thanks

=index(b2:b5,match(aggregate(15,6,len(a2:a5)/isnumber(search(d2,a2:a5)),1),len(a2:a5)/isnumber(search(d2,a2:a5)),0))