Alright, let's work through 65816116 times 2020005 step by step
65816116 × 2020005 = 2020005 × (65816116)
+ 2020005 × 6 giving us 12120030
+ 2020005 × 10 that results in 20200050
+ 2020005 × 100 resulting in 202000500
+ 2020005 × 6000 giving us 12120030000
+ 2020005 × 10000 resulting in 20200050000
+ 2020005 × 800000 that equals 1616004000000
+ 2020005 × 5000000 that results in 10100025000000
+ 2020005 × 60000000 what gives us 121200300000000

= 132948883400580
