55174891 ÷ 129 
We're looking to find how many times 129 goes into 55174891.

Moving on to step 1:
The number 129 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 129

Step 2:
The number 129 fits into 55 0 times, leaving a remainder of 55.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Fetch the next digit (1) from the dividend, attach it to 55 and continue: 551 / 129

Let's proceed to step 3:
If we divide 551 by 129, we get 4 and a remainder of 35.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 516 from 551, we get 35.
Include the next digit (7) from the dividend after 35, then repeat: 357 / 129

Step 4:
129 can be fit into 357 2 times, resulting in a remainder of 99.
The next digit of our result is 2. 
Result so far: 42.0
Deduct 258 from 357 and we're left with 99.
Include the next digit (4) from the dividend after 99, then repeat: 994 / 129

On to step 5:
129 can be fit into 994 7 times, resulting in a remainder of 91.
The number 7 becomes the next digit in our result. 
Result so far: 427.0
If we take 903 away from 994, we end up with 91.
Append the next digit (8) from the dividend to 91 and continue with: 918 / 129

On to step 6:
When dividing 918 by 129, we get 7 with a remainder of 15.
Record the quotient 7 as the next digit in the result. 
Result so far: 4277.0
Subtract 903 from 918 to get 15.
Grab the next digit (9) from the dividend, add it to 15, then carry on: 159 / 129

Let's proceed to step 7:
When dividing 159 by 129, we get 1 with a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 42771.0
Deduct 129 from 159 and we're left with 30.
Bring next digit (1) of the dividend behind the 30 and repeat the process: 301 / 129

Going ahead to step 8:
301 divided by 129 is 2 with a remainder of 43.
Use 2 as the next digit of our solution. 
Result so far: 427712.0
Deduct 258 from 301 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 9:
When dividing 430 by 129, we get 3 with a remainder of 43.
Use 3 as the next digit of our solution. 
Result so far: 427712.3
Subtracting 387 from 430 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 10:
When dividing 430 by 129, we get 3 with a remainder of 43.
Write down 3 as next digit of the result. 
Result so far: 427712.33
Subtract 387 from 430 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The quotient of the division is 427712.33, and the remainder is 0.043.