Alright, let's work through 1604 times 4166 step by step
1604 × 4166 = 4166 × (1604)
+ 4166 × 4 giving us 16664
+ 4166 × 00 that results in 0
+ 4166 × 600 yielding 2499600
+ 4166 × 1000 resulting in 4166000

= 6682264
