Alright, let's work through 6980 times 4257 step by step
6980 × 4257 = 4257 × (6980)
+ 4257 × 0 what gives us 0
+ 4257 × 80 which equals 340560
+ 4257 × 900 what gives us 3831300
+ 4257 × 6000 resulting in 25542000

= 29713860
