No problem, we've got 1589 and 6560 to multiply
1589 × 6560 = 6560 × (1589)
+ 6560 × 9 yielding 59040
+ 6560 × 80 what gives us 524800
+ 6560 × 500 producing 3280000
+ 6560 × 1000 what gives us 6560000

= 10423840
