We're dividing 52619287 by 129 
Let's see how many times 129 fits into 52619287.

Let's proceed to step 1:
If we divide 5 by 129, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 129

Advancing to step 2:
129 can be fit into 52 0 times, resulting in a remainder of 52.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 52 leaves us with 52.
Take the next digit (6) from the dividend and append it to 52, then repeat: 526 / 129

Step 3:
526 divided by 129 is 4 with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 516 from 526 and we're left with 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 129

Step 4:
The number 129 fits into 101 0 times, leaving a remainder of 101.
Put 0 as the next digit of the answer. 
Result so far: 40.0
If we take 0 away from 101, we end up with 101.
Include the next digit (9) from the dividend after 101, then repeat: 1019 / 129

Step 5:
1019 divided by 129 is 7 with a remainder of 116.
The number 7 becomes the next digit in our result. 
Result so far: 407.0
Deduct 903 from 1019 and we're left with 116.
Fetch the next digit (2) from the dividend, attach it to 116 and continue: 1162 / 129

On to step 6:
1162 divided by 129 is 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 4079.0
If we subtract 1161 from 1162, we get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 129

Advancing to step 7:
129 goes into 18 0 times with a remainder of 18.
The next digit of our result is 0. 
Result so far: 40790.0
If we take 0 away from 18, we end up with 18.
Bring next digit (7) of the dividend behind the 18 and repeat the process: 187 / 129

Let's proceed to step 8:
129 can be fit into 187 1 times, resulting in a remainder of 58.
Record the quotient 1 as the next digit in the result. 
Result so far: 407901.0
The remainder is 58 after subtracting 129 from 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 9:
580 divided by 129 is 4 with a remainder of 64.
The number 4 becomes the next digit in our result. 
Result so far: 407901.4
Subtracting 516 from 580 leaves us 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.

On to step 10:
129 can be fit into 640 4 times, resulting in a remainder of 124.
Use 4 as the next digit of our solution. 
Result so far: 407901.44
If we take 516 away from 640, we end up with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

The final result is 407901.44 with a remainder of 0.124.