Alright, let's work through 7939 times 213 step by step
7939 × 213 = 213 × (7939)
+ 213 × 9 that is equal 1917
+ 213 × 30 yielding 6390
+ 213 × 900 resulting in 191700
+ 213 × 7000 producing 1491000

= 1691007
