No problem, we've got 3545 and 6439 to multiply
3545 × 6439 = 6439 × (3545)
+ 6439 × 5 that is equal 32195
+ 6439 × 40 yielding 257560
+ 6439 × 500 giving us 3219500
+ 6439 × 3000 yielding 19317000

= 22826255
