Let's divide 644722 by 1
We're looking to find how many times 1 goes into 644722.

Moving on to step 1:
1 goes into 6 6 times with a remainder of 0.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 6 from 6, we get 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 1

Going ahead to step 2:
When dividing 4 by 1, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 64.0
Deduct 4 from 4 and we're left with 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 1

Step 3:
4 divided by 1 is 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 644.0
If we subtract 4 from 4, we get 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 1

Let's proceed to step 4:
If we divide 7 by 1, we get 7 and a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 6447.0
If we subtract 7 from 7, we get 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 1

Let's proceed to step 5:
2 divided by 1 is 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 64472.0
Subtracting 2 from 2 leaves us with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 1

Advancing to step 6:
1 goes into 2 2 times with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 644722.0
Deduct 2 from 2 and we're left 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.

Step 7:
0 divided by 1 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 644722.0
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.

Step 8:
0 divided by 1 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 644722.0
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.

Our division results in 644722.0 with a remaining 0.0.