Alright, let's work through 81150985 times 4497742 step by step
81150985 × 4497742 = 4497742 × (81150985)
+ 4497742 × 5 producing 22488710
+ 4497742 × 80 giving us 359819360
+ 4497742 × 900 producing 4047967800
+ 4497742 × 0000 yielding 0
+ 4497742 × 50000 resulting in 224887100000
+ 4497742 × 100000 that equals 449774200000
+ 4497742 × 1000000 that equals 4497742000000
+ 4497742 × 80000000 which equals 359819360000000

= 364996193575870
