Alright, let's work through 3120 times 4916 step by step
3120 × 4916 = 4916 × (3120)
+ 4916 × 0 that results in 0
+ 4916 × 20 yielding 98320
+ 4916 × 100 resulting in 491600
+ 4916 × 3000 resulting in 14748000

= 15337920
