84449328 ÷ 644 
We want to divide 84449328 by 644.

Moving on to step 1:
644 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 644

Advancing to step 2:
644 can be fit into 84 0 times, resulting in a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 84 after subtracting 0 from 84.
Grab the next digit (4) from the dividend, add it to 84, then carry on: 844 / 644

Advancing to step 3:
When dividing 844 by 644, we get 1 with a remainder of 200.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 644 from 844 and we're left with 200.
Grab the next digit (4) from the dividend, add it to 200, then carry on: 2004 / 644

Moving on to step 4:
If we divide 2004 by 644, we get 3 and a remainder of 72.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 1932 from 2004, we get 72.
Include the next digit (9) from the dividend after 72, then repeat: 729 / 644

Moving on to step 5:
644 can be fit into 729 1 times, resulting in a remainder of 85.
Use 1 as the next digit of our solution. 
Result so far: 131.0
The remainder is 85 after subtracting 644 from 729.
Include the next digit (3) from the dividend after 85, then repeat: 853 / 644

Advancing to step 6:
If we divide 853 by 644, we get 1 and a remainder of 209.
Write down 1 as next digit of the result. 
Result so far: 1311.0
Deduct 644 from 853 and we're left with 209.
Bring next digit (2) of the dividend behind the 209 and repeat the process: 2092 / 644

Step 7:
When dividing 2092 by 644, we get 3 with a remainder of 160.
Use 3 as the next digit of our solution. 
Result so far: 13113.0
Deduct 1932 from 2092 and we're left with 160.
Include the next digit (8) from the dividend after 160, then repeat: 1608 / 644

Advancing to step 8:
The number 644 fits into 1608 2 times, leaving a remainder of 320.
Put 2 as the next digit of the answer. 
Result so far: 131132.0
The remainder is 320 after subtracting 1288 from 1608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 9:
When dividing 3200 by 644, we get 4 with a remainder of 624.
The number 4 becomes the next digit in our result. 
Result so far: 131132.4
If we take 2576 away from 3200, we end up with 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

On to step 10:
644 goes into 6240 9 times with a remainder of 444.
Record the quotient 9 as the next digit in the result. 
Result so far: 131132.49
Deduct 5796 from 6240 and we're left with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Advancing to step 11:
When dividing 4440 by 644, we get 6 with a remainder of 576.
The number 6 becomes the next digit in our result. 
Result so far: 131132.496
Subtracting 3864 from 4440 leaves us with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

On to step 12:
5760 divided by 644 is 8 with a remainder of 608.
Put 8 as the next digit of the answer. 
Result so far: 131132.4968
Deduct 5152 from 5760 and we're left with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Going ahead to step 13:
The number 644 fits into 6080 9 times, leaving a remainder of 284.
Put 9 as the next digit of the answer. 
Result so far: 131132.49689
If we take 5796 away from 6080, we end up with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Moving on to step 14:
If we divide 2840 by 644, we get 4 and a remainder of 264.
Write down 4 as next digit of the result. 
Result so far: 131132.496894
If we subtract 2576 from 2840, we get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Advancing to step 15:
The number 644 fits into 2640 4 times, leaving a remainder of 64.
Record the quotient 4 as the next digit in the result. 
Result so far: 131132.4968944
If we take 2576 away from 2640, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

In conclusion, the division gives 131132.4968944 with a balance of 6.4e-07.