Alright, let's work through 81668923 times 70845634 step by step
81668923 × 70845634 = 70845634 × (81668923)
+ 70845634 × 3 producing 212536902
+ 70845634 × 20 resulting in 1416912680
+ 70845634 × 900 which equals 63761070600
+ 70845634 × 8000 that results in 566765072000
+ 70845634 × 60000 giving us 4250738040000
+ 70845634 × 600000 that equals 42507380400000
+ 70845634 × 1000000 yielding 70845634000000
+ 70845634 × 80000000 resulting in 5667650720000000

= 5785886628032182
