Alright, let's work through 79835657 times 79628667 step by step
79835657 × 79628667 = 79628667 × (79835657)
+ 79628667 × 7 resulting in 557400669
+ 79628667 × 50 producing 3981433350
+ 79628667 × 600 giving us 47777200200
+ 79628667 × 5000 yielding 398143335000
+ 79628667 × 30000 producing 2388860010000
+ 79628667 × 800000 that is equal 63702933600000
+ 79628667 × 9000000 what gives us 716658003000000
+ 79628667 × 70000000 giving us 5574006690000000

= 6357206945979219
