Alright, let's work through 8206 times 6658 step by step
8206 × 6658 = 6658 × (8206)
+ 6658 × 6 giving us 39948
+ 6658 × 00 producing 0
+ 6658 × 200 yielding 1331600
+ 6658 × 8000 resulting in 53264000

= 54635548
