Alright, let's work through 61281990 times 42004423 step by step
61281990 × 42004423 = 42004423 × (61281990)
+ 42004423 × 0 that equals 0
+ 42004423 × 90 that is equal 3780398070
+ 42004423 × 900 resulting in 37803980700
+ 42004423 × 1000 producing 42004423000
+ 42004423 × 80000 yielding 3360353840000
+ 42004423 × 200000 that results in 8400884600000
+ 42004423 × 1000000 which equals 42004423000000
+ 42004423 × 60000000 which equals 2520265380000000

= 2574114630241770
