No problem, we've got 80451054 and 47842857 to multiply
80451054 × 47842857 = 47842857 × (80451054)
+ 47842857 × 4 giving us 191371428
+ 47842857 × 50 which equals 2392142850
+ 47842857 × 000 that equals 0
+ 47842857 × 1000 that is equal 47842857000
+ 47842857 × 50000 yielding 2392142850000
+ 47842857 × 400000 yielding 19137142800000
+ 47842857 × 0000000 that equals 0
+ 47842857 × 80000000 producing 3827428560000000

= 3849008272021278
