Alright, let's work through 42490487 times 56307122 step by step
42490487 × 56307122 = 56307122 × (42490487)
+ 56307122 × 7 that is equal 394149854
+ 56307122 × 80 giving us 4504569760
+ 56307122 × 400 resulting in 22522848800
+ 56307122 × 0000 yielding 0
+ 56307122 × 90000 yielding 5067640980000
+ 56307122 × 400000 yielding 22522848800000
+ 56307122 × 2000000 which equals 112614244000000
+ 56307122 × 40000000 yielding 2252284880000000

= 2392517035348414
