No problem, we've got 87167686 and 66769118 to multiply
87167686 × 66769118 = 66769118 × (87167686)
+ 66769118 × 6 yielding 400614708
+ 66769118 × 80 what gives us 5341529440
+ 66769118 × 600 which equals 40061470800
+ 66769118 × 7000 which equals 467383826000
+ 66769118 × 60000 which equals 4006147080000
+ 66769118 × 100000 resulting in 6676911800000
+ 66769118 × 7000000 that equals 467383826000000
+ 66769118 × 80000000 that results in 5341529440000000

= 5820109512320948
