Alright, let's work through 45143520 times 53254981 step by step
45143520 × 53254981 = 53254981 × (45143520)
+ 53254981 × 0 that is equal 0
+ 53254981 × 20 producing 1065099620
+ 53254981 × 500 yielding 26627490500
+ 53254981 × 3000 which equals 159764943000
+ 53254981 × 40000 resulting in 2130199240000
+ 53254981 × 100000 that is equal 5325498100000
+ 53254981 × 5000000 producing 266274905000000
+ 53254981 × 40000000 giving us 2130199240000000

= 2404117299873120
