No problem, we've got 80078186 and 51894051 to multiply
80078186 × 51894051 = 51894051 × (80078186)
+ 51894051 × 6 that equals 311364306
+ 51894051 × 80 that equals 4151524080
+ 51894051 × 100 yielding 5189405100
+ 51894051 × 8000 giving us 415152408000
+ 51894051 × 70000 yielding 3632583570000
+ 51894051 × 000000 which equals 0
+ 51894051 × 0000000 that results in 0
+ 51894051 × 80000000 that is equal 4151524080000000

= 4155581468271486
