I don't see any reply from OP so I'm growing confident that what you're talking about is not OP's point.
Often times when coding you may want to quickly write down 2MB but you may need to type it in bytes, so either you calculate 2 * 1024 * 1024 while coding, or you remember the number 2097152.
Now, since 2097152 is not such a common number that one would remember, you may quickly turn to the globally acclaimed oracle search engine to get such an answer, but all you get is a number in scientific notation, approximated, without an option to read it in standard decimal base. So you have to open the calculator and ask the same question again to get the answer you need.
If it helps, try to ignore what's in the search bar and tell me if it makes more sense.
Edit: Additionally, if you were to NOT use the scientific notation, the length of the result would be shorter: