No problem, we've got 3435 and 1624 to multiply
3435 × 1624 = 1624 × (3435)
+ 1624 × 5 what gives us 8120
+ 1624 × 30 which equals 48720
+ 1624 × 400 that equals 649600
+ 1624 × 3000 resulting in 4872000

= 5578440
