Alright, let's work through 8921 times 5143 step by step
8921 × 5143 = 5143 × (8921)
+ 5143 × 1 what gives us 5143
+ 5143 × 20 yielding 102860
+ 5143 × 900 giving us 4628700
+ 5143 × 8000 resulting in 41144000

= 45880703
