Alright, let's work through 8936 times 4807 step by step
8936 × 4807 = 4807 × (8936)
+ 4807 × 6 that is equal 28842
+ 4807 × 30 giving us 144210
+ 4807 × 900 giving us 4326300
+ 4807 × 8000 that equals 38456000

= 42955352
