Alright, let's work through 1858 times 3979 step by step
1858 × 3979 = 3979 × (1858)
+ 3979 × 8 what gives us 31832
+ 3979 × 50 that is equal 198950
+ 3979 × 800 giving us 3183200
+ 3979 × 1000 producing 3979000

= 7392982
