We're dividing 60505663 by 129 
We want to figure out the number of times 60505663 can be divided by 129.

Step 1:
129 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 129

On to step 2:
If we divide 60 by 129, we get 0 and a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 60, we end up with 60.
Fetch the next digit (5) from the dividend, attach it to 60 and continue: 605 / 129

Advancing to step 3:
129 can be fit into 605 4 times, resulting in a remainder of 89.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 516 from 605 to get 89.
Grab the next digit (0) from the dividend, add it to 89, then carry on: 890 / 129

On to step 4:
If we divide 890 by 129, we get 6 and a remainder of 116.
Put 6 as the next digit of the answer. 
Result so far: 46.0
Subtract 774 from 890 to get 116.
Bring next digit (5) of the dividend behind the 116 and repeat the process: 1165 / 129

Going ahead to step 5:
129 goes into 1165 9 times with a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 469.0
Deduct 1161 from 1165 and we're left with 4.
Append the next digit (6) from the dividend to 4 and continue with: 46 / 129

Step 6:
129 can be fit into 46 0 times, resulting in a remainder of 46.
The next digit of our result is 0. 
Result so far: 4690.0
If we take 0 away from 46, we end up with 46.
Grab the next digit (6) from the dividend, add it to 46, then carry on: 466 / 129

Going ahead to step 7:
The number 129 fits into 466 3 times, leaving a remainder of 79.
Put 3 as the next digit of the answer. 
Result so far: 46903.0
Subtracting 387 from 466 leaves us with 79.
Bring next digit (3) of the dividend behind the 79 and repeat the process: 793 / 129

Let's proceed to step 8:
If we divide 793 by 129, we get 6 and a remainder of 19.
The next digit of our result is 6. 
Result so far: 469036.0
The remainder is 19 after subtracting 774 from 793.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 9:
129 goes into 190 1 times with a remainder of 61.
The next digit of our result is 1. 
Result so far: 469036.1
Subtract 129 from 190 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 10:
129 can be fit into 610 4 times, resulting in a remainder of 94.
Use 4 as the next digit of our solution. 
Result so far: 469036.14
If we subtract 516 from 610, we get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Advancing to step 11:
The number 129 fits into 940 7 times, leaving a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 469036.147
If we subtract 903 from 940, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 12:
If we divide 370 by 129, we get 2 and a remainder of 112.
Write down 2 as next digit of the result. 
Result so far: 469036.1472
If we take 258 away from 370, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Let's proceed to step 13:
1120 divided by 129 is 8 with a remainder of 88.
Write down 8 as next digit of the result. 
Result so far: 469036.14728
Deduct 1032 from 1120 and we're left with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Step 14:
129 goes into 880 6 times with a remainder of 106.
The next digit of our result is 6. 
Result so far: 469036.147286
Subtracting 774 from 880 leaves us with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Advancing to step 15:
The number 129 fits into 1060 8 times, leaving a remainder of 28.
The next digit of our result is 8. 
Result so far: 469036.1472868
If we subtract 1032 from 1060, we get 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 16:
When dividing 280 by 129, we get 2 with a remainder of 22.
The next digit of our result is 2. 
Result so far: 469036.14728682
The remainder is 22 after subtracting 258 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 469036.14728682, with a leftover of 2.2e-08.