Alright, let's work through 90782780 times 96669139 step by step
90782780 × 96669139 = 96669139 × (90782780)
+ 96669139 × 0 which equals 0
+ 96669139 × 80 resulting in 7733531120
+ 96669139 × 700 yielding 67668397300
+ 96669139 × 2000 which equals 193338278000
+ 96669139 × 80000 that equals 7733531120000
+ 96669139 × 700000 yielding 67668397300000
+ 96669139 × 0000000 that equals 0
+ 96669139 × 90000000 yielding 8700222510000000

= 8775893178626420
