Alright, let's work through 1380 times 9641 step by step
1380 × 9641 = 9641 × (1380)
+ 9641 × 0 that results in 0
+ 9641 × 80 that equals 771280
+ 9641 × 300 which equals 2892300
+ 9641 × 1000 that equals 9641000

= 13304580
