Alright, let's work through 4097 times 1539 step by step
4097 × 1539 = 1539 × (4097)
+ 1539 × 7 that equals 10773
+ 1539 × 90 that is equal 138510
+ 1539 × 000 giving us 0
+ 1539 × 4000 that results in 6156000

= 6305283
