No problem, we've got 86552246 and 77063243 to multiply
86552246 × 77063243 = 77063243 × (86552246)
+ 77063243 × 6 what gives us 462379458
+ 77063243 × 40 that results in 3082529720
+ 77063243 × 200 which equals 15412648600
+ 77063243 × 2000 giving us 154126486000
+ 77063243 × 50000 resulting in 3853162150000
+ 77063243 × 500000 that equals 38531621500000
+ 77063243 × 6000000 what gives us 462379458000000
+ 77063243 × 80000000 what gives us 6165059440000000

= 6669996765693778
