Alright, let's work through 45265803 times 77991493 step by step
45265803 × 77991493 = 77991493 × (45265803)
+ 77991493 × 3 that results in 233974479
+ 77991493 × 00 giving us 0
+ 77991493 × 800 yielding 62393194400
+ 77991493 × 5000 what gives us 389957465000
+ 77991493 × 60000 giving us 4679489580000
+ 77991493 × 200000 that equals 15598298600000
+ 77991493 × 5000000 which equals 389957465000000
+ 77991493 × 40000000 that results in 3119659720000000

= 3530347557813879
