No problem, we've got 84878954 and 87043743 to multiply
84878954 × 87043743 = 87043743 × (84878954)
+ 87043743 × 4 which equals 348174972
+ 87043743 × 50 that is equal 4352187150
+ 87043743 × 900 what gives us 78339368700
+ 87043743 × 8000 what gives us 696349944000
+ 87043743 × 70000 that is equal 6093062010000
+ 87043743 × 800000 that equals 69634994400000
+ 87043743 × 4000000 giving us 348174972000000
+ 87043743 × 80000000 that is equal 6963499440000000

= 7388181858084822
