Alright, let's work through 67412863 times 70409207 step by step
67412863 × 70409207 = 70409207 × (67412863)
+ 70409207 × 3 that equals 211227621
+ 70409207 × 60 what gives us 4224552420
+ 70409207 × 800 resulting in 56327365600
+ 70409207 × 2000 resulting in 140818414000
+ 70409207 × 10000 that results in 704092070000
+ 70409207 × 400000 that is equal 28163682800000
+ 70409207 × 7000000 giving us 492864449000000
+ 70409207 × 60000000 yielding 4224552420000000

= 4746486225429641
