Alright, let's work through 2847 times 7050 step by step
2847 × 7050 = 7050 × (2847)
+ 7050 × 7 which equals 49350
+ 7050 × 40 resulting in 282000
+ 7050 × 800 yielding 5640000
+ 7050 × 2000 giving us 14100000

= 20071350
