Digit Counter

Count how many digits are in the number 12345 by dividing it by 10 repeatedly until it reaches 0.

Expected output:

5 digits

Hints:

• Start with let mut number = 12345; and let mut digits = 0;
• Loop while number > 0
• Divide number by 10 each time (integer division: number /= 10;)
• Add 1 to digits each time
• Print the result after the loop