No problem, we've got 6639 and 6452 to multiply
6639 × 6452 = 6452 × (6639)
+ 6452 × 9 yielding 58068
+ 6452 × 30 that results in 193560
+ 6452 × 600 resulting in 3871200
+ 6452 × 6000 which equals 38712000

= 42834828
