Alright, let's work through 4821 times 4977 step by step
4821 × 4977 = 4977 × (4821)
+ 4977 × 1 which equals 4977
+ 4977 × 20 which equals 99540
+ 4977 × 800 giving us 3981600
+ 4977 × 4000 giving us 19908000

= 23994117
