Alright, let's work through 3145 times 1670 step by step
3145 × 1670 = 1670 × (3145)
+ 1670 × 5 giving us 8350
+ 1670 × 40 producing 66800
+ 1670 × 100 yielding 167000
+ 1670 × 3000 that is equal 5010000

= 5252150
