No problem, we've got 87120504 and 86395679 to multiply
87120504 × 86395679 = 86395679 × (87120504)
+ 86395679 × 4 resulting in 345582716
+ 86395679 × 00 producing 0
+ 86395679 × 500 resulting in 43197839500
+ 86395679 × 0000 resulting in 0
+ 86395679 × 20000 producing 1727913580000
+ 86395679 × 100000 giving us 8639567900000
+ 86395679 × 7000000 producing 604769753000000
+ 86395679 × 80000000 yielding 6911654320000000

= 7526835097902216
