We're going to solve 1351 multiplied by 1638
1351 × 1638 = 1638 × (1351)
+ 1638 × 1 that equals 1638
+ 1638 × 50 producing 81900
+ 1638 × 300 giving us 491400
+ 1638 × 1000 producing 1638000

= 2212938
