Alright, let's work through 51692879 times 84805316 step by step
51692879 × 84805316 = 84805316 × (51692879)
+ 84805316 × 9 giving us 763247844
+ 84805316 × 70 giving us 5936372120
+ 84805316 × 800 yielding 67844252800
+ 84805316 × 2000 producing 169610632000
+ 84805316 × 90000 that results in 7632478440000
+ 84805316 × 600000 which equals 50883189600000
+ 84805316 × 1000000 producing 84805316000000
+ 84805316 × 50000000 what gives us 4240265800000000

= 4383830938544764
