Alright, let's work through 21542686 times 57240567 step by step
21542686 × 57240567 = 57240567 × (21542686)
+ 57240567 × 6 which equals 343443402
+ 57240567 × 80 which equals 4579245360
+ 57240567 × 600 resulting in 34344340200
+ 57240567 × 2000 that results in 114481134000
+ 57240567 × 40000 yielding 2289622680000
+ 57240567 × 500000 that results in 28620283500000
+ 57240567 × 1000000 what gives us 57240567000000
+ 57240567 × 20000000 giving us 1144811340000000

= 1233115561342962
