Alright, let's work through 1923 times 3693 step by step
1923 × 3693 = 3693 × (1923)
+ 3693 × 3 producing 11079
+ 3693 × 20 what gives us 73860
+ 3693 × 900 what gives us 3323700
+ 3693 × 1000 that equals 3693000

= 7101639
