Let's divide 646570 by 4
We want to figure out the number of times 646570 can be divided by 4.

Advancing to step 1:
The number 4 fits into 6 1 times, leaving a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 2 after subtracting 4 from 6.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 4

Going ahead to step 2:
24 divided by 4 is 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 16.0
The remainder is 0 after subtracting 24 from 24.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 4

Step 3:
4 goes into 6 1 times with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 161.0
Subtracting 4 from 6 leaves us with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 4

Moving on to step 4:
25 divided by 4 is 6 with a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 1616.0
Subtract 24 from 25 to get 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 4

Let's proceed to step 5:
17 divided by 4 is 4 with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 16164.0
The remainder is 1 after subtracting 16 from 17.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 4

Step 6:
The number 4 fits into 10 2 times, leaving a remainder of 2.
The next digit of our result is 2. 
Result so far: 161642.0
If we subtract 8 from 10, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 7:
The number 4 fits into 20 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 161642.5
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 8:
0 divided by 4 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 161642.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
4 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 161642.5
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 161642.5 with a balance of 0.0.