No problem, we've got 6405 and 4374 to multiply
6405 × 4374 = 4374 × (6405)
+ 4374 × 5 giving us 21870
+ 4374 × 00 producing 0
+ 4374 × 400 what gives us 1749600
+ 4374 × 6000 giving us 26244000

= 28015470
