No problem, we've got 6483 and 1355 to multiply
6483 × 1355 = 1355 × (6483)
+ 1355 × 3 what gives us 4065
+ 1355 × 80 giving us 108400
+ 1355 × 400 what gives us 542000
+ 1355 × 6000 what gives us 8130000

= 8784465
