No problem, we've got 20109686 and 10630452 to multiply
20109686 × 10630452 = 10630452 × (20109686)
+ 10630452 × 6 that equals 63782712
+ 10630452 × 80 yielding 850436160
+ 10630452 × 600 yielding 6378271200
+ 10630452 × 9000 giving us 95674068000
+ 10630452 × 00000 resulting in 0
+ 10630452 × 100000 giving us 1063045200000
+ 10630452 × 0000000 producing 0
+ 10630452 × 20000000 that results in 212609040000000

= 213775051758072
