Alright, let's work through 1086 times 3652 step by step
1086 × 3652 = 3652 × (1086)
+ 3652 × 6 giving us 21912
+ 3652 × 80 giving us 292160
+ 3652 × 000 that equals 0
+ 3652 × 1000 that results in 3652000

= 3966072
