Let's calculate 4231 x 4485
4231 × 4485 = 4485 × (4231)
+ 4485 × 1 yielding 4485
+ 4485 × 30 that results in 134550
+ 4485 × 200 that results in 897000
+ 4485 × 4000 that results in 17940000

= 18976035
