Alright, let's work through 1945 times 679 step by step
1945 × 679 = 679 × (1945)
+ 679 × 5 what gives us 3395
+ 679 × 40 yielding 27160
+ 679 × 900 that results in 611100
+ 679 × 1000 yielding 679000

= 1320655
