No problem, we've got 2639 and 2108 to multiply
2639 × 2108 = 2108 × (2639)
+ 2108 × 9 that results in 18972
+ 2108 × 30 that is equal 63240
+ 2108 × 600 giving us 1264800
+ 2108 × 2000 that results in 4216000

= 5563012
