We're going to solve 1640 multiplied by 4292
1640 × 4292 = 4292 × (1640)
+ 4292 × 0 yielding 0
+ 4292 × 40 yielding 171680
+ 4292 × 600 that results in 2575200
+ 4292 × 1000 that is equal 4292000

= 7038880
