Alright, let's work through 2520 times 4809 step by step
2520 × 4809 = 4809 × (2520)
+ 4809 × 0 which equals 0
+ 4809 × 20 giving us 96180
+ 4809 × 500 resulting in 2404500
+ 4809 × 2000 resulting in 9618000

= 12118680
