Alright, let's work through 4485 times 7803 step by step
4485 × 7803 = 7803 × (4485)
+ 7803 × 5 resulting in 39015
+ 7803 × 80 resulting in 624240
+ 7803 × 400 that equals 3121200
+ 7803 × 4000 that equals 31212000

= 34996455
