Alright, let's work through 67870031 times 17858336 step by step
67870031 × 17858336 = 17858336 × (67870031)
+ 17858336 × 1 which equals 17858336
+ 17858336 × 30 that results in 535750080
+ 17858336 × 000 that results in 0
+ 17858336 × 0000 that equals 0
+ 17858336 × 70000 which equals 1250083520000
+ 17858336 × 800000 resulting in 14286668800000
+ 17858336 × 7000000 producing 125008352000000
+ 17858336 × 60000000 yielding 1071500160000000

= 1212045817928416
