Alright, let's work through 28732720 times 89541432 step by step
28732720 × 89541432 = 89541432 × (28732720)
+ 89541432 × 0 yielding 0
+ 89541432 × 20 resulting in 1790828640
+ 89541432 × 700 that equals 62679002400
+ 89541432 × 2000 that equals 179082864000
+ 89541432 × 30000 yielding 2686242960000
+ 89541432 × 700000 resulting in 62679002400000
+ 89541432 × 8000000 giving us 716331456000000
+ 89541432 × 20000000 resulting in 1790828640000000

= 2572768894055040
