Degree is inconsequential. I'd say "if she is a human, she will do better by learning math rather than not doing it."
How so?
Maths is more about "thinking creatively, clearly and critically about things that are complex and abstract" rather than about doing "arithmetic". And I guess, "thinking creatively, clearly and critically about things that are complex and abstract" is a very essential thing in human life. The entire human progress depended upon this skill and in fact, the very survival of humans depended upon this skill in the earlier world which was very hostile for humans.
Now coming back to the issue of having to do long division in early childhood: yes, it may be the case that you don't need to do long division (later) in your life even for once. Long division may not be that important but the concept of division (and remainder) is very important in our life.
Why is it important to learn division along many other complex (boring) topics in math? It's to hone your skills to "think creatively, clearly and critically about things that are complex and abstract".
Proofs in geometry and algebra help you more in this conquest. Sadly, most mainstream schools these days take out the creative challenges and motivational aspects from the math education and stuff it with mundane procedures to be followed like rituals. Sadly again, the much-tauted non-standard schools (like Waldorf, Sudbury etc) do away with the math almost entirely and which is very detrimental to academic progress of the kids.
edit: corrected some grammatical errors.