No problem, we've got 2546 and 6120 to multiply
2546 × 6120 = 6120 × (2546)
+ 6120 × 6 that is equal 36720
+ 6120 × 40 what gives us 244800
+ 6120 × 500 yielding 3060000
+ 6120 × 2000 giving us 12240000

= 15581520
