Alright, let's work through 7830 times 5905 step by step
7830 × 5905 = 5905 × (7830)
+ 5905 × 0 yielding 0
+ 5905 × 30 which equals 177150
+ 5905 × 800 that is equal 4724000
+ 5905 × 7000 giving us 41335000

= 46236150
