Alright, let's work through 7922 times 6541 step by step
7922 × 6541 = 6541 × (7922)
+ 6541 × 2 yielding 13082
+ 6541 × 20 yielding 130820
+ 6541 × 900 what gives us 5886900
+ 6541 × 7000 that results in 45787000

= 51817802
