No problem, we've got 1668 and 3261 to multiply
1668 × 3261 = 3261 × (1668)
+ 3261 × 8 that equals 26088
+ 3261 × 60 which equals 195660
+ 3261 × 600 that is equal 1956600
+ 3261 × 1000 that results in 3261000

= 5439348
