No problem, we've got 2587 and 6646 to multiply
2587 × 6646 = 6646 × (2587)
+ 6646 × 7 giving us 46522
+ 6646 × 80 that is equal 531680
+ 6646 × 500 yielding 3323000
+ 6646 × 2000 yielding 13292000

= 17193202
