Alright, let's work through 87103466 times 77189474 step by step
87103466 × 77189474 = 77189474 × (87103466)
+ 77189474 × 6 yielding 463136844
+ 77189474 × 60 yielding 4631368440
+ 77189474 × 400 yielding 30875789600
+ 77189474 × 3000 producing 231568422000
+ 77189474 × 00000 resulting in 0
+ 77189474 × 100000 that equals 7718947400000
+ 77189474 × 7000000 resulting in 540326318000000
+ 77189474 × 80000000 which equals 6175157920000000

= 6723470724116884
