Alright, let's work through 4305 times 7897 step by step
4305 × 7897 = 7897 × (4305)
+ 7897 × 5 that is equal 39485
+ 7897 × 00 which equals 0
+ 7897 × 300 giving us 2369100
+ 7897 × 4000 producing 31588000

= 33996585
