We're going to solve 1321 multiplied by 4072
1321 × 4072 = 4072 × (1321)
+ 4072 × 1 which equals 4072
+ 4072 × 20 that is equal 81440
+ 4072 × 300 giving us 1221600
+ 4072 × 1000 what gives us 4072000

= 5379112
