Alright, let's work through 18519878 times 46948285 step by step
18519878 × 46948285 = 46948285 × (18519878)
+ 46948285 × 8 giving us 375586280
+ 46948285 × 70 yielding 3286379950
+ 46948285 × 800 that results in 37558628000
+ 46948285 × 9000 giving us 422534565000
+ 46948285 × 10000 which equals 469482850000
+ 46948285 × 500000 that results in 23474142500000
+ 46948285 × 8000000 producing 375586280000000
+ 46948285 × 10000000 what gives us 469482850000000

= 869476510509230
