No problem, we've got 21213431 and 11050557 to multiply
21213431 × 11050557 = 11050557 × (21213431)
+ 11050557 × 1 producing 11050557
+ 11050557 × 30 resulting in 331516710
+ 11050557 × 400 which equals 4420222800
+ 11050557 × 3000 that equals 33151671000
+ 11050557 × 10000 yielding 110505570000
+ 11050557 × 200000 that is equal 2210111400000
+ 11050557 × 1000000 that results in 11050557000000
+ 11050557 × 20000000 giving us 221011140000000

= 234420228431067
