No problem, we've got 18777642 and 85419109 to multiply
18777642 × 85419109 = 85419109 × (18777642)
+ 85419109 × 2 which equals 170838218
+ 85419109 × 40 that equals 3416764360
+ 85419109 × 600 giving us 51251465400
+ 85419109 × 7000 producing 597933763000
+ 85419109 × 70000 that results in 5979337630000
+ 85419109 × 700000 producing 59793376300000
+ 85419109 × 8000000 yielding 683352872000000
+ 85419109 × 10000000 that is equal 854191090000000

= 1603969448760978
