Alright, let's work through 13490976 times 72368305 step by step
13490976 × 72368305 = 72368305 × (13490976)
+ 72368305 × 6 giving us 434209830
+ 72368305 × 70 that is equal 5065781350
+ 72368305 × 900 which equals 65131474500
+ 72368305 × 0000 which equals 0
+ 72368305 × 90000 yielding 6513147450000
+ 72368305 × 400000 that is equal 28947322000000
+ 72368305 × 3000000 what gives us 217104915000000
+ 72368305 × 10000000 that equals 723683050000000

= 976319065915680
