We're going to solve 2638 multiplied by 3268
2638 × 3268 = 3268 × (2638)
+ 3268 × 8 resulting in 26144
+ 3268 × 30 which equals 98040
+ 3268 × 600 that is equal 1960800
+ 3268 × 2000 what gives us 6536000

= 8620984
