Alright, let's work through 1223 times 3400 step by step
1223 × 3400 = 3400 × (1223)
+ 3400 × 3 that is equal 10200
+ 3400 × 20 that results in 68000
+ 3400 × 200 resulting in 680000
+ 3400 × 1000 that results in 3400000

= 4158200
