Alright, let's work through 4520 times 2448 step by step
4520 × 2448 = 2448 × (4520)
+ 2448 × 0 which equals 0
+ 2448 × 20 giving us 48960
+ 2448 × 500 what gives us 1224000
+ 2448 × 4000 that is equal 9792000

= 11064960
