Alright, let's work through 1978 times 6305 step by step
1978 × 6305 = 6305 × (1978)
+ 6305 × 8 which equals 50440
+ 6305 × 70 that results in 441350
+ 6305 × 900 that results in 5674500
+ 6305 × 1000 that is equal 6305000

= 12471290
