We're going to solve 1989 multiplied by 7435
1989 × 7435 = 7435 × (1989)
+ 7435 × 9 that equals 66915
+ 7435 × 80 yielding 594800
+ 7435 × 900 producing 6691500
+ 7435 × 1000 resulting in 7435000

= 14788215
