Alright, let's work through 1776 times 7776 step by step
1776 × 7776 = 7776 × (1776)
+ 7776 × 6 that equals 46656
+ 7776 × 70 what gives us 544320
+ 7776 × 700 giving us 5443200
+ 7776 × 1000 what gives us 7776000

= 13810176
