No problem, we've got 90670243 and 66928983 to multiply
90670243 × 66928983 = 66928983 × (90670243)
+ 66928983 × 3 what gives us 200786949
+ 66928983 × 40 producing 2677159320
+ 66928983 × 200 which equals 13385796600
+ 66928983 × 0000 that is equal 0
+ 66928983 × 70000 that equals 4685028810000
+ 66928983 × 600000 producing 40157389800000
+ 66928983 × 0000000 that equals 0
+ 66928983 × 90000000 giving us 6023608470000000

= 6068467152352869
