Alright, let's work through 1582 times 4343 step by step
1582 × 4343 = 4343 × (1582)
+ 4343 × 2 resulting in 8686
+ 4343 × 80 resulting in 347440
+ 4343 × 500 giving us 2171500
+ 4343 × 1000 giving us 4343000

= 6870626
