Alright, let's work through 5307344 times 53380394 step by step
5307344 × 53380394 = 53380394 × (5307344)
+ 53380394 × 4 that equals 213521576
+ 53380394 × 40 yielding 2135215760
+ 53380394 × 300 that is equal 16014118200
+ 53380394 × 7000 yielding 373662758000
+ 53380394 × 00000 which equals 0
+ 53380394 × 300000 that is equal 16014118200000
+ 53380394 × 5000000 what gives us 266901970000000

= 283308113813536
