Alright, let's work through 13407694 times 43734903 step by step
13407694 × 43734903 = 43734903 × (13407694)
+ 43734903 × 4 producing 174939612
+ 43734903 × 90 giving us 3936141270
+ 43734903 × 600 that results in 26240941800
+ 43734903 × 7000 giving us 306144321000
+ 43734903 × 00000 that is equal 0
+ 43734903 × 400000 resulting in 17493961200000
+ 43734903 × 3000000 which equals 131204709000000
+ 43734903 × 10000000 which equals 437349030000000

= 586384196543682
