No problem, we've got 2509 and 2659 to multiply
2509 × 2659 = 2659 × (2509)
+ 2659 × 9 yielding 23931
+ 2659 × 00 what gives us 0
+ 2659 × 500 that equals 1329500
+ 2659 × 2000 resulting in 5318000

= 6671431
