No problem, we've got 2639 and 2664 to multiply
2639 × 2664 = 2664 × (2639)
+ 2664 × 9 that results in 23976
+ 2664 × 30 that equals 79920
+ 2664 × 600 that results in 1598400
+ 2664 × 2000 what gives us 5328000

= 7030296
