Alright, let's work through 80489845 times 3552361 step by step
80489845 × 3552361 = 3552361 × (80489845)
+ 3552361 × 5 that equals 17761805
+ 3552361 × 40 yielding 142094440
+ 3552361 × 800 yielding 2841888800
+ 3552361 × 9000 giving us 31971249000
+ 3552361 × 80000 giving us 284188880000
+ 3552361 × 400000 that is equal 1420944400000
+ 3552361 × 0000000 producing 0
+ 3552361 × 80000000 giving us 284188880000000

= 285928986274045
