We're going to solve 4521 multiplied by 1236
4521 × 1236 = 1236 × (4521)
+ 1236 × 1 yielding 1236
+ 1236 × 20 giving us 24720
+ 1236 × 500 producing 618000
+ 1236 × 4000 what gives us 4944000

= 5587956
