Alright, let's work through 41771580 times 78190919 step by step
41771580 × 78190919 = 78190919 × (41771580)
+ 78190919 × 0 what gives us 0
+ 78190919 × 80 that equals 6255273520
+ 78190919 × 500 what gives us 39095459500
+ 78190919 × 1000 that is equal 78190919000
+ 78190919 × 70000 that equals 5473364330000
+ 78190919 × 700000 that equals 54733643300000
+ 78190919 × 1000000 that equals 78190919000000
+ 78190919 × 40000000 yielding 3127636760000000

= 3266158228282020
