No problem, we've got 2539 and 2463 to multiply
2539 × 2463 = 2463 × (2539)
+ 2463 × 9 that is equal 22167
+ 2463 × 30 that equals 73890
+ 2463 × 500 which equals 1231500
+ 2463 × 2000 which equals 4926000

= 6253557
