No problem, we've got 2658 and 1635 to multiply
2658 × 1635 = 1635 × (2658)
+ 1635 × 8 what gives us 13080
+ 1635 × 50 which equals 81750
+ 1635 × 600 that equals 981000
+ 1635 × 2000 resulting in 3270000

= 4345830
