No problem, we've got 6279 and 7439 to multiply
6279 × 7439 = 7439 × (6279)
+ 7439 × 9 what gives us 66951
+ 7439 × 70 that is equal 520730
+ 7439 × 200 which equals 1487800
+ 7439 × 6000 that is equal 44634000

= 46709481
