No problem, we've got 6724 and 1107 to multiply
6724 × 1107 = 1107 × (6724)
+ 1107 × 4 that is equal 4428
+ 1107 × 20 resulting in 22140
+ 1107 × 700 what gives us 774900
+ 1107 × 6000 yielding 6642000

= 7443468
