Divide by zero runtime panic

use std::io;
use std::io::Write;

fn main() {
    loop {
        let dividend = 100;
        let divisor = get_number();
        let res = divide_by(dividend, divisor);
        println!("{dividend} / {divisor} = {res}");
    }
}

fn divide_by(dividend: i32, divisor: i32) -> i32 {
    dividend / divisor
}

fn get_number() -> i32 {
    let mut number = String::new();

    print!("Please type in a number: ");
    io::stdout().flush().expect("Oups");
    io::stdin()
        .read_line(&mut number)
        .expect("Failed to get input");

    let number: i32 = number.trim().parse().expect("Could not convert to i32");

    number
}

Please type in a number: 20
5
Please type in a number: 0
thread 'main' panicked at 'attempt to divide by zero', examples/errors/div_by_zero.rs:7:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace