Alright, let's work through 9901 times 3637 step by step
9901 × 3637 = 3637 × (9901)
+ 3637 × 1 resulting in 3637
+ 3637 × 00 that equals 0
+ 3637 × 900 resulting in 3273300
+ 3637 × 9000 yielding 32733000

= 36009937
