Alright, let's work through 3730 times 9990 step by step
3730 × 9990 = 9990 × (3730)
+ 9990 × 0 giving us 0
+ 9990 × 30 that equals 299700
+ 9990 × 700 that equals 6993000
+ 9990 × 3000 that equals 29970000

= 37262700
