Alright, let's work through 66167994 times 13422853 step by step
66167994 × 13422853 = 13422853 × (66167994)
+ 13422853 × 4 that results in 53691412
+ 13422853 × 90 producing 1208056770
+ 13422853 × 900 what gives us 12080567700
+ 13422853 × 7000 that equals 93959971000
+ 13422853 × 60000 that equals 805371180000
+ 13422853 × 100000 giving us 1342285300000
+ 13422853 × 6000000 giving us 80537118000000
+ 13422853 × 60000000 which equals 805371180000000

= 888163256766882
