Alright, let's work through 90418994 times 60023954 step by step
90418994 × 60023954 = 60023954 × (90418994)
+ 60023954 × 4 producing 240095816
+ 60023954 × 90 producing 5402155860
+ 60023954 × 900 giving us 54021558600
+ 60023954 × 8000 that results in 480191632000
+ 60023954 × 10000 which equals 600239540000
+ 60023954 × 400000 yielding 24009581600000
+ 60023954 × 0000000 yielding 0
+ 60023954 × 90000000 giving us 5402155860000000

= 5427305536582276
