Alright, let's work through 45503677 times 71520333 step by step
45503677 × 71520333 = 71520333 × (45503677)
+ 71520333 × 7 yielding 500642331
+ 71520333 × 70 giving us 5006423310
+ 71520333 × 600 what gives us 42912199800
+ 71520333 × 3000 yielding 214560999000
+ 71520333 × 00000 resulting in 0
+ 71520333 × 500000 what gives us 35760166500000
+ 71520333 × 5000000 producing 357601665000000
+ 71520333 × 40000000 which equals 2860813320000000

= 3254438131764441
