53602639 divided by 680 
We want to figure out the number of times 53602639 can be divided by 680.

Going ahead to step 1:
The number 680 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 680

On to step 2:
680 can be fit into 53 0 times, resulting in a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 53, we end up with 53.
Append the next digit (6) from the dividend to 53 and continue with: 536 / 680

Going ahead to step 3:
If we divide 536 by 680, we get 0 and a remainder of 536.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 536 to get 536.
Bring next digit (0) of the dividend behind the 536 and repeat the process: 5360 / 680

Advancing to step 4:
The number 680 fits into 5360 7 times, leaving a remainder of 600.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we take 4760 away from 5360, we end up with 600.
Fetch the next digit (2) from the dividend, attach it to 600 and continue: 6002 / 680

Going ahead to step 5:
680 goes into 6002 8 times with a remainder of 562.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtracting 5440 from 6002 leaves us with 562.
Fetch the next digit (6) from the dividend, attach it to 562 and continue: 5626 / 680

Step 6:
5626 divided by 680 is 8 with a remainder of 186.
Use 8 as the next digit of our solution. 
Result so far: 788.0
Subtract 5440 from 5626 to get 186.
Grab the next digit (3) from the dividend, add it to 186, then carry on: 1863 / 680

Step 7:
1863 divided by 680 is 2 with a remainder of 503.
Use 2 as the next digit of our solution. 
Result so far: 7882.0
Subtracting 1360 from 1863 leaves us with 503.
Include the next digit (9) from the dividend after 503, then repeat: 5039 / 680

Going ahead to step 8:
When dividing 5039 by 680, we get 7 with a remainder of 279.
The number 7 becomes the next digit in our result. 
Result so far: 78827.0
Subtract 4760 from 5039 to get 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Step 9:
If we divide 2790 by 680, we get 4 and a remainder of 70.
Use 4 as the next digit of our solution. 
Result so far: 78827.4
If we take 2720 away from 2790, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 10:
When dividing 700 by 680, we get 1 with a remainder of 20.
The next digit of our result is 1. 
Result so far: 78827.41
Subtract 680 from 700 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.

On to step 11:
The number 680 fits into 200 0 times, leaving a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 78827.41
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 12:
680 can be fit into 2000 2 times, resulting in a remainder of 640.
Record the quotient 2 as the next digit in the result. 
Result so far: 78827.4102
Subtracting 1360 from 2000 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 13:
6400 divided by 680 is 9 with a remainder of 280.
Record the quotient 9 as the next digit in the result. 
Result so far: 78827.41029
If we take 6120 away from 6400, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 14:
The number 680 fits into 2800 4 times, leaving a remainder of 80.
Record the quotient 4 as the next digit in the result. 
Result so far: 78827.410294
Deduct 2720 from 2800 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 15:
680 goes into 800 1 times with a remainder of 120.
Write down 1 as next digit of the result. 
Result so far: 78827.4102941
The remainder is 120 after subtracting 680 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 16:
680 can be fit into 1200 1 times, resulting in a remainder of 520.
Use 1 as the next digit of our solution. 
Result so far: 78827.41029411
Subtract 680 from 1200 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

The final outcome is 78827.41029411, with a leftover of 5.2e-07.