No problem, we've got 21512292 and 87134530 to multiply
21512292 × 87134530 = 87134530 × (21512292)
+ 87134530 × 2 resulting in 174269060
+ 87134530 × 90 resulting in 7842107700
+ 87134530 × 200 yielding 17426906000
+ 87134530 × 2000 yielding 174269060000
+ 87134530 × 10000 yielding 871345300000
+ 87134530 × 500000 which equals 43567265000000
+ 87134530 × 1000000 producing 87134530000000
+ 87134530 × 20000000 that equals 1742690600000000

= 1874463452642760
