Alright, let's work through 76649499 times 76870683 step by step
76649499 × 76870683 = 76870683 × (76649499)
+ 76870683 × 9 resulting in 691836147
+ 76870683 × 90 yielding 6918361470
+ 76870683 × 400 producing 30748273200
+ 76870683 × 9000 that is equal 691836147000
+ 76870683 × 40000 that is equal 3074827320000
+ 76870683 × 600000 producing 46122409800000
+ 76870683 × 6000000 yielding 461224098000000
+ 76870683 × 70000000 giving us 5380947810000000

= 5892099339737817
