Alright, let's work through 5182 times 4129 step by step
5182 × 4129 = 4129 × (5182)
+ 4129 × 2 what gives us 8258
+ 4129 × 80 producing 330320
+ 4129 × 100 resulting in 412900
+ 4129 × 5000 what gives us 20645000

= 21396478
