Let's divide 78252524 by 644
Let's see how many times 644 fits into 78252524.

Advancing to step 1:
644 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 644

Moving on to step 2:
The number 644 fits into 78 0 times, leaving a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Include the next digit (2) from the dividend after 78, then repeat: 782 / 644

Step 3:
The number 644 fits into 782 1 times, leaving a remainder of 138.
The next digit of our result is 1. 
Result so far: 1.0
If we take 644 away from 782, we end up with 138.
Include the next digit (5) from the dividend after 138, then repeat: 1385 / 644

Let's proceed to step 4:
644 can be fit into 1385 2 times, resulting in a remainder of 97.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we subtract 1288 from 1385, we get 97.
Bring next digit (2) of the dividend behind the 97 and repeat the process: 972 / 644

Going ahead to step 5:
The number 644 fits into 972 1 times, leaving a remainder of 328.
Put 1 as the next digit of the answer. 
Result so far: 121.0
Deduct 644 from 972 and we're left with 328.
Take the next digit (5) from the dividend and append it to 328, then repeat: 3285 / 644

Advancing to step 6:
When dividing 3285 by 644, we get 5 with a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 1215.0
Subtract 3220 from 3285 to get 65.
Fetch the next digit (2) from the dividend, attach it to 65 and continue: 652 / 644

On to step 7:
The number 644 fits into 652 1 times, leaving a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 12151.0
The remainder is 8 after subtracting 644 from 652.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 644

Step 8:
84 divided by 644 is 0 with a remainder of 84.
Use 0 as the next digit of our solution. 
Result so far: 121510.0
Deduct 0 from 84 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 9:
The number 644 fits into 840 1 times, leaving a remainder of 196.
The next digit of our result is 1. 
Result so far: 121510.1
Subtract 644 from 840 to get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Advancing to step 10:
The number 644 fits into 1960 3 times, leaving a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 121510.13
Deduct 1932 from 1960 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 11:
644 goes into 280 0 times with a remainder of 280.
Put 0 as the next digit of the answer. 
Result so far: 121510.13
The remainder is 280 after subtracting 0 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 12:
The number 644 fits into 2800 4 times, leaving a remainder of 224.
Use 4 as the next digit of our solution. 
Result so far: 121510.1304
Subtracting 2576 from 2800 leaves us with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Advancing to step 13:
The number 644 fits into 2240 3 times, leaving a remainder of 308.
The number 3 becomes the next digit in our result. 
Result so far: 121510.13043
Subtract 1932 from 2240 to get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Let's proceed to step 14:
If we divide 3080 by 644, we get 4 and a remainder of 504.
The number 4 becomes the next digit in our result. 
Result so far: 121510.130434
The remainder is 504 after subtracting 2576 from 3080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Let's proceed to step 15:
644 goes into 5040 7 times with a remainder of 532.
Record the quotient 7 as the next digit in the result. 
Result so far: 121510.1304347
If we take 4508 away from 5040, we end up with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

On to step 16:
If we divide 5320 by 644, we get 8 and a remainder of 168.
The next digit of our result is 8. 
Result so far: 121510.13043478
Subtract 5152 from 5320 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

After the division, we end up with 121510.13043478 and a remainder of 1.68e-07.