Alright, let's work through 1561 times 4243 step by step
1561 × 4243 = 4243 × (1561)
+ 4243 × 1 yielding 4243
+ 4243 × 60 producing 254580
+ 4243 × 500 which equals 2121500
+ 4243 × 1000 giving us 4243000

= 6623323
