Alright, let's work through 87991067 times 96760951 step by step
87991067 × 96760951 = 96760951 × (87991067)
+ 96760951 × 7 that is equal 677326657
+ 96760951 × 60 producing 5805657060
+ 96760951 × 000 what gives us 0
+ 96760951 × 1000 yielding 96760951000
+ 96760951 × 90000 what gives us 8708485590000
+ 96760951 × 900000 yielding 87084855900000
+ 96760951 × 7000000 which equals 677326657000000
+ 96760951 × 80000000 resulting in 7740876080000000

= 8514099322424717
