No problem, we've got 4389 and 7392 to multiply
4389 × 7392 = 7392 × (4389)
+ 7392 × 9 that is equal 66528
+ 7392 × 80 yielding 591360
+ 7392 × 300 what gives us 2217600
+ 7392 × 4000 giving us 29568000

= 32443488
