27310145 ÷ 129 
We're looking to find how many times 129 goes into 27310145.

Step 1:
129 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 129

Let's proceed to step 2:
When dividing 27 by 129, we get 0 with a remainder of 27.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 27 leaves us with 27.
Grab the next digit (3) from the dividend, add it to 27, then carry on: 273 / 129

Moving on to step 3:
273 divided by 129 is 2 with a remainder of 15.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 258 from 273, we get 15.
Grab the next digit (1) from the dividend, add it to 15, then carry on: 151 / 129

Going ahead to step 4:
129 can be fit into 151 1 times, resulting in a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 21.0
The remainder is 22 after subtracting 129 from 151.
Include the next digit (0) from the dividend after 22, then repeat: 220 / 129

Going ahead to step 5:
When dividing 220 by 129, we get 1 with a remainder of 91.
Use 1 as the next digit of our solution. 
Result so far: 211.0
If we subtract 129 from 220, we get 91.
Grab the next digit (1) from the dividend, add it to 91, then carry on: 911 / 129

On to step 6:
911 divided by 129 is 7 with a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 2117.0
Deduct 903 from 911 and we're left with 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 129

Moving on to step 7:
When dividing 84 by 129, we get 0 with a remainder of 84.
The next digit of our result is 0. 
Result so far: 21170.0
The remainder is 84 after subtracting 0 from 84.
Include the next digit (5) from the dividend after 84, then repeat: 845 / 129

Going ahead to step 8:
845 divided by 129 is 6 with a remainder of 71.
The next digit of our result is 6. 
Result so far: 211706.0
Subtract 774 from 845 to get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 9:
When dividing 710 by 129, we get 5 with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 211706.5
The remainder is 65 after subtracting 645 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 10:
If we divide 650 by 129, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 211706.55
If we subtract 645 from 650, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 211706.55, with a leftover of 0.005.