Alright, let's work through 4628 times 86 step by step
4628 × 86 = 86 × (4628)
+ 86 × 8 that results in 688
+ 86 × 20 giving us 1720
+ 86 × 600 yielding 51600
+ 86 × 4000 resulting in 344000

= 398008
