No problem, we've got 6638 and 528 to multiply
6638 × 528 = 528 × (6638)
+ 528 × 8 yielding 4224
+ 528 × 30 what gives us 15840
+ 528 × 600 that results in 316800
+ 528 × 6000 resulting in 3168000

= 3504864
