Let's calculate 42982721 x 81580010
42982721 × 81580010 = 81580010 × (42982721)
+ 81580010 × 1 that results in 81580010
+ 81580010 × 20 what gives us 1631600200
+ 81580010 × 700 that equals 57106007000
+ 81580010 × 2000 giving us 163160020000
+ 81580010 × 80000 producing 6526400800000
+ 81580010 × 900000 resulting in 73422009000000
+ 81580010 × 2000000 which equals 163160020000000
+ 81580010 × 40000000 that equals 3263200400000000

= 3506530809007210
