Alright, let's work through 1966 times 5601 step by step
1966 × 5601 = 5601 × (1966)
+ 5601 × 6 giving us 33606
+ 5601 × 60 what gives us 336060
+ 5601 × 900 that is equal 5040900
+ 5601 × 1000 giving us 5601000

= 11011566
