1) $$1751 : 5 = 350 \text{ (ост. 1)}$$
350 ------- 5|1751 -15 ---- 25 -25 ---- 1
2) $$2930 : 7 = 418 \text{ (ост. 4)}$$
418 ------- 7|2930 -28 --- 13 -7 -- 60 -56 --- 4
3) $$1983 : 9 = 220 \text{ (ост. 3)}$$
220 ------- 9|1983 -18 --- 18 -18 --- 3
4) $$40202 : 6 = 6700 \text{ (ост. 2)}$$
6700 -------- 6|40202 -36 --- 42 -42 --- 2
Ответ: 1) 1751:5=350 (ост. 1); 2) 2930:7=418 (ост. 4); 3) 1983:9=220 (ост. 3); 4) 40202:6=6700 (ост. 2).