Alright, let's work through 5171 times 6639 step by step
5171 × 6639 = 6639 × (5171)
+ 6639 × 1 that results in 6639
+ 6639 × 70 what gives us 464730
+ 6639 × 100 that results in 663900
+ 6639 × 5000 resulting in 33195000

= 34330269
