No problem, we've got 66861009 and 78485890 to multiply
66861009 × 78485890 = 78485890 × (66861009)
+ 78485890 × 9 that equals 706373010
+ 78485890 × 00 that equals 0
+ 78485890 × 000 that is equal 0
+ 78485890 × 1000 resulting in 78485890000
+ 78485890 × 60000 that equals 4709153400000
+ 78485890 × 800000 giving us 62788712000000
+ 78485890 × 6000000 that is equal 470915340000000
+ 78485890 × 60000000 producing 4709153400000000

= 5247645797663010
