No problem, we've got 1539 and 4259 to multiply
1539 × 4259 = 4259 × (1539)
+ 4259 × 9 what gives us 38331
+ 4259 × 30 what gives us 127770
+ 4259 × 500 that results in 2129500
+ 4259 × 1000 producing 4259000

= 6554601
