Alright, let's work through 1189 times 4055 step by step
1189 × 4055 = 4055 × (1189)
+ 4055 × 9 that is equal 36495
+ 4055 × 80 resulting in 324400
+ 4055 × 100 what gives us 405500
+ 4055 × 1000 producing 4055000

= 4821395
