Let's divide 644388 by 70
Let's see how many times 70 fits into 644388.

Step 1:
When dividing 6 by 70, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 70

Moving on to step 2:
70 can be fit into 64 0 times, resulting in a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Bring next digit (4) of the dividend behind the 64 and repeat the process: 644 / 70

On to step 3:
70 can be fit into 644 9 times, resulting in a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 630 from 644, we get 14.
Take the next digit (3) from the dividend and append it to 14, then repeat: 143 / 70

Step 4:
143 divided by 70 is 2 with a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 92.0
The remainder is 3 after subtracting 140 from 143.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 70

Let's proceed to step 5:
The number 70 fits into 38 0 times, leaving a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 920.0
Subtracting 0 from 38 leaves us with 38.
Fetch the next digit (8) from the dividend, attach it to 38 and continue: 388 / 70

Let's proceed to step 6:
When dividing 388 by 70, we get 5 with a remainder of 38.
Record the quotient 5 as the next digit in the result. 
Result so far: 9205.0
Subtract 350 from 388 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 7:
380 divided by 70 is 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 9205.5
Subtract 350 from 380 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
The number 70 fits into 300 4 times, leaving a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 9205.54
If we subtract 280 from 300, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
70 goes into 200 2 times with a remainder of 60.
The number 2 becomes the next digit in our result. 
Result so far: 9205.542
If we subtract 140 from 200, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 10:
If we divide 600 by 70, we get 8 and a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 9205.5428
Subtract 560 from 600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 11:
70 goes into 400 5 times with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 9205.54285
The remainder is 50 after subtracting 350 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 12:
The number 70 fits into 500 7 times, leaving a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 9205.542857
Subtract 490 from 500 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
70 can be fit into 100 1 times, resulting in a remainder of 30.
The next digit of our result is 1. 
Result so far: 9205.5428571
Deduct 70 from 100 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 14:
300 divided by 70 is 4 with a remainder of 20.
The next digit of our result is 4. 
Result so far: 9205.54285714
Subtract 280 from 300 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 9205.54285714, with a leftover of 2e-08.