No problem, we've got 6263 and 6690 to multiply
6263 × 6690 = 6690 × (6263)
+ 6690 × 3 giving us 20070
+ 6690 × 60 that equals 401400
+ 6690 × 200 which equals 1338000
+ 6690 × 6000 what gives us 40140000

= 41899470
