Alright, let's work through 80284159 times 12695656 step by step
80284159 × 12695656 = 12695656 × (80284159)
+ 12695656 × 9 producing 114260904
+ 12695656 × 50 yielding 634782800
+ 12695656 × 100 giving us 1269565600
+ 12695656 × 4000 producing 50782624000
+ 12695656 × 80000 which equals 1015652480000
+ 12695656 × 200000 that is equal 2539131200000
+ 12695656 × 0000000 which equals 0
+ 12695656 × 80000000 yielding 1015652480000000

= 1019260064913304
