No problem, we've got 78309993 and 61360271 to multiply
78309993 × 61360271 = 61360271 × (78309993)
+ 61360271 × 3 producing 184080813
+ 61360271 × 90 which equals 5522424390
+ 61360271 × 900 resulting in 55224243900
+ 61360271 × 9000 which equals 552242439000
+ 61360271 × 00000 giving us 0
+ 61360271 × 300000 producing 18408081300000
+ 61360271 × 8000000 that results in 490882168000000
+ 61360271 × 70000000 resulting in 4295218970000000

= 4805122392488103
