aller calcul renaissance

First figure of the quotient.

Alignment of the divisor with the dividend.

We consider how many times the first digit of the divisor enlarged by 1 (5+1=6) is in 23. The multiplication table says 3.

Division.

Check of the result. 56 can be subtracted one more time, the first figure of the quotient is thus not 3 as one had noted but 4.