Alright, let's work through 3661 times 2379 step by step
3661 × 2379 = 2379 × (3661)
+ 2379 × 1 resulting in 2379
+ 2379 × 60 what gives us 142740
+ 2379 × 600 that equals 1427400
+ 2379 × 3000 yielding 7137000

= 8709519
