Alright, let's work through 13376440 times 25456742 step by step
13376440 × 25456742 = 25456742 × (13376440)
+ 25456742 × 0 that is equal 0
+ 25456742 × 40 which equals 1018269680
+ 25456742 × 400 that equals 10182696800
+ 25456742 × 6000 producing 152740452000
+ 25456742 × 70000 yielding 1781971940000
+ 25456742 × 300000 what gives us 7637022600000
+ 25456742 × 3000000 what gives us 76370226000000
+ 25456742 × 10000000 resulting in 254567420000000

= 340520581958480
