No problem, we've got 1004 and 6642 to multiply
1004 × 6642 = 6642 × (1004)
+ 6642 × 4 that results in 26568
+ 6642 × 00 producing 0
+ 6642 × 000 that equals 0
+ 6642 × 1000 which equals 6642000

= 6668568
