No problem, we've got 2560 and 2523 to multiply
2560 × 2523 = 2523 × (2560)
+ 2523 × 0 that is equal 0
+ 2523 × 60 that equals 151380
+ 2523 × 500 giving us 1261500
+ 2523 × 2000 which equals 5046000

= 6458880
