Alright, let's work through 1642 times 9619 step by step
1642 × 9619 = 9619 × (1642)
+ 9619 × 2 that equals 19238
+ 9619 × 40 producing 384760
+ 9619 × 600 resulting in 5771400
+ 9619 × 1000 resulting in 9619000

= 15794398
