No problem, we've got 1342 and 4389 to multiply
1342 × 4389 = 4389 × (1342)
+ 4389 × 2 that equals 8778
+ 4389 × 40 that equals 175560
+ 4389 × 300 what gives us 1316700
+ 4389 × 1000 resulting in 4389000

= 5890038
