Alright, let's work through 1839 times 9665 step by step
1839 × 9665 = 9665 × (1839)
+ 9665 × 9 yielding 86985
+ 9665 × 30 resulting in 289950
+ 9665 × 800 which equals 7732000
+ 9665 × 1000 yielding 9665000

= 17773935
