Alright, let's work through 18894860 times 71151258 step by step
18894860 × 71151258 = 71151258 × (18894860)
+ 71151258 × 0 what gives us 0
+ 71151258 × 60 which equals 4269075480
+ 71151258 × 800 producing 56921006400
+ 71151258 × 4000 what gives us 284605032000
+ 71151258 × 90000 what gives us 6403613220000
+ 71151258 × 800000 that is equal 56921006400000
+ 71151258 × 8000000 resulting in 569210064000000
+ 71151258 × 10000000 which equals 711512580000000

= 1344393058733880
