How do I remove tenth from any natural number?

Question

For example if I type 18463829 it should remove tenths and it will be 1846389.

Answer 1

I still don't believe I did this, but here's my c++ code about it :)
https://code.sololearn.com/cBC8INDf04F5/?ref=app

(still a fervent follower of The Snake 🐍😉)

Answer 2

Omg that is too easy, thank You.