SB 6.18.72
krtto me saptadha garbha
asan sapta kumarakah
te ’pi caikaikaso vrknah
saptadha napi mamrire
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
First I cut the child in the womb into seven pieces, which became seven children. Then I cut each of the children into seven pieces again. By the grace of the Supreme Lord, however, none of them died.