Alright, let's work through 1662 times 781 step by step
1662 × 781 = 781 × (1662)
+ 781 × 2 giving us 1562
+ 781 × 60 which equals 46860
+ 781 × 600 giving us 468600
+ 781 × 1000 that is equal 781000

= 1298022
