We're going to solve 4905 multiplied by 2139
4905 × 2139 = 2139 × (4905)
+ 2139 × 5 that is equal 10695
+ 2139 × 00 resulting in 0
+ 2139 × 900 that results in 1925100
+ 2139 × 4000 producing 8556000

= 10491795
