Alright, let's work through 42054043 times 81132300 step by step
42054043 × 81132300 = 81132300 × (42054043)
+ 81132300 × 3 what gives us 243396900
+ 81132300 × 40 which equals 3245292000
+ 81132300 × 000 yielding 0
+ 81132300 × 4000 which equals 324529200000
+ 81132300 × 50000 that results in 4056615000000
+ 81132300 × 000000 that equals 0
+ 81132300 × 2000000 producing 162264600000000
+ 81132300 × 40000000 that results in 3245292000000000

= 3411941232888900
