Alright, let's work through 4956 times 2603 step by step
4956 × 2603 = 2603 × (4956)
+ 2603 × 6 yielding 15618
+ 2603 × 50 producing 130150
+ 2603 × 900 giving us 2342700
+ 2603 × 4000 yielding 10412000

= 12900468
