Alright, let's work through 3173 times 6139 step by step
3173 × 6139 = 6139 × (3173)
+ 6139 × 3 which equals 18417
+ 6139 × 70 that results in 429730
+ 6139 × 100 that results in 613900
+ 6139 × 3000 that equals 18417000

= 19479047
