Explanation:Multiplying 2 by 3 directly results in 6.
Example 2:
Input:num1 = "123", num2 = "456"
Output:"56088"
Explanation:This is a standard long multiplication. The product of 123 and 456 is 56088.
Example 3:
Input:num1 = "0", num2 = "123"
Output:"0"
Explanation:Any number multiplied by zero is zero. This is handled by the base case.
Example 4:
Input:num1 = "99", num2 = "99"
Output:"9801"
Explanation:Illustrates multiplication of two larger numbers, resulting in a product whose length (4) is equal to the sum of the lengths of the inputs (2+2).