Alright, let's work through 6340 times 161 step by step
6340 × 161 = 161 × (6340)
+ 161 × 0 what gives us 0
+ 161 × 40 what gives us 6440
+ 161 × 300 giving us 48300
+ 161 × 6000 which equals 966000

= 1020740
