Alright, let's work through 8990 times 3503 step by step
8990 × 3503 = 3503 × (8990)
+ 3503 × 0 resulting in 0
+ 3503 × 90 that equals 315270
+ 3503 × 900 that equals 3152700
+ 3503 × 8000 that results in 28024000

= 31491970
