Alright, let's work through 1661 times 4869 step by step
1661 × 4869 = 4869 × (1661)
+ 4869 × 1 that equals 4869
+ 4869 × 60 which equals 292140
+ 4869 × 600 that is equal 2921400
+ 4869 × 1000 which equals 4869000

= 8087409
