Alright, let's work through 4127 times 145 step by step
4127 × 145 = 145 × (4127)
+ 145 × 7 that results in 1015
+ 145 × 20 that is equal 2900
+ 145 × 100 that equals 14500
+ 145 × 4000 which equals 580000

= 598415
