Alright, let's work through 1909 times 5235 step by step
1909 × 5235 = 5235 × (1909)
+ 5235 × 9 that results in 47115
+ 5235 × 00 that equals 0
+ 5235 × 900 yielding 4711500
+ 5235 × 1000 yielding 5235000

= 9993615
