84073261 ÷ 644 
Let's see how many times 644 fits into 84073261.

Let's proceed to step 1:
When dividing 8 by 644, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 644

Step 2:
644 goes into 84 0 times with a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 84 to get 84.
Bring next digit (0) of the dividend behind the 84 and repeat the process: 840 / 644

On to step 3:
If we divide 840 by 644, we get 1 and a remainder of 196.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 644 from 840 and we're left with 196.
Include the next digit (7) from the dividend after 196, then repeat: 1967 / 644

Moving on to step 4:
When dividing 1967 by 644, we get 3 with a remainder of 35.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 1932 from 1967, we get 35.
Take the next digit (3) from the dividend and append it to 35, then repeat: 353 / 644

Step 5:
353 divided by 644 is 0 with a remainder of 353.
Put 0 as the next digit of the answer. 
Result so far: 130.0
If we take 0 away from 353, we end up with 353.
Fetch the next digit (2) from the dividend, attach it to 353 and continue: 3532 / 644

On to step 6:
When dividing 3532 by 644, we get 5 with a remainder of 312.
Write down 5 as next digit of the result. 
Result so far: 1305.0
Deduct 3220 from 3532 and we're left with 312.
Bring next digit (6) of the dividend behind the 312 and repeat the process: 3126 / 644

Moving on to step 7:
If we divide 3126 by 644, we get 4 and a remainder of 550.
Use 4 as the next digit of our solution. 
Result so far: 13054.0
If we subtract 2576 from 3126, we get 550.
Take the next digit (1) from the dividend and append it to 550, then repeat: 5501 / 644

Going ahead to step 8:
644 can be fit into 5501 8 times, resulting in a remainder of 349.
The number 8 becomes the next digit in our result. 
Result so far: 130548.0
If we subtract 5152 from 5501, we get 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Step 9:
3490 divided by 644 is 5 with a remainder of 270.
The next digit of our result is 5. 
Result so far: 130548.5
Subtract 3220 from 3490 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Advancing to step 10:
644 can be fit into 2700 4 times, resulting in a remainder of 124.
Use 4 as the next digit of our solution. 
Result so far: 130548.54
Subtract 2576 from 2700 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Moving on to step 11:
1240 divided by 644 is 1 with a remainder of 596.
The next digit of our result is 1. 
Result so far: 130548.541
If we subtract 644 from 1240, we get 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

On to step 12:
When dividing 5960 by 644, we get 9 with a remainder of 164.
Put 9 as the next digit of the answer. 
Result so far: 130548.5419
Deduct 5796 from 5960 and we're left with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Step 13:
If we divide 1640 by 644, we get 2 and a remainder of 352.
Put 2 as the next digit of the answer. 
Result so far: 130548.54192
Subtracting 1288 from 1640 leaves us with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Let's proceed to step 14:
If we divide 3520 by 644, we get 5 and a remainder of 300.
Record the quotient 5 as the next digit in the result. 
Result so far: 130548.541925
Subtract 3220 from 3520 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 15:
When dividing 3000 by 644, we get 4 with a remainder of 424.
Write down 4 as next digit of the result. 
Result so far: 130548.5419254
If we take 2576 away from 3000, we end up with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Step 16:
644 can be fit into 4240 6 times, resulting in a remainder of 376.
The next digit of our result is 6. 
Result so far: 130548.54192546
If we subtract 3864 from 4240, we get 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

The final result is 130548.54192546 with a remainder of 3.76e-07.