661970 ÷ 5 
We want to figure out the number of times 661970 can be divided by 5.

Going ahead to step 1:
5 goes into 6 1 times with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 5 from 6 to get 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 5

Step 2:
When dividing 16 by 5, we get 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 15 from 16, we get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 5

Advancing to step 3:
When dividing 11 by 5, we get 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 132.0
Subtract 10 from 11 to get 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 5

On to step 4:
5 goes into 19 3 times with a remainder of 4.
The next digit of our result is 3. 
Result so far: 1323.0
If we subtract 15 from 19, we get 4.
Take the next digit (7) from the dividend and append it to 4, then repeat: 47 / 5

Advancing to step 5:
5 goes into 47 9 times with a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 13239.0
The remainder is 2 after subtracting 45 from 47.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 5

Moving on to step 6:
When dividing 20 by 5, we get 4 with a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 132394.0
Subtract 20 from 20 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
The number 5 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 132394.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
5 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 132394.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 132394.0 with a remainder of 0.0.