Alright, let's work through 3310 times 6386 step by step
3310 × 6386 = 6386 × (3310)
+ 6386 × 0 what gives us 0
+ 6386 × 10 that equals 63860
+ 6386 × 300 resulting in 1915800
+ 6386 × 3000 giving us 19158000

= 21137660
