No problem, we've got 77407471 and 84727221 to multiply
77407471 × 84727221 = 84727221 × (77407471)
+ 84727221 × 1 that results in 84727221
+ 84727221 × 70 that is equal 5930905470
+ 84727221 × 400 which equals 33890888400
+ 84727221 × 7000 what gives us 593090547000
+ 84727221 × 00000 producing 0
+ 84727221 × 400000 resulting in 33890888400000
+ 84727221 × 7000000 that results in 593090547000000
+ 84727221 × 70000000 giving us 5930905470000000

= 6558519902468091
