We're dividing 58542103 by 129 
We want to figure out the number of times 58542103 can be divided by 129.

Advancing to step 1:
5 divided by 129 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 129

Going ahead to step 2:
The number 129 fits into 58 0 times, leaving a remainder of 58.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 58 and we're left with 58.
Fetch the next digit (5) from the dividend, attach it to 58 and continue: 585 / 129

Going ahead to step 3:
The number 129 fits into 585 4 times, leaving a remainder of 69.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 516 from 585 to get 69.
Take the next digit (4) from the dividend and append it to 69, then repeat: 694 / 129

Going ahead to step 4:
129 goes into 694 5 times with a remainder of 49.
The number 5 becomes the next digit in our result. 
Result so far: 45.0
The remainder is 49 after subtracting 645 from 694.
Take the next digit (2) from the dividend and append it to 49, then repeat: 492 / 129

Step 5:
129 goes into 492 3 times with a remainder of 105.
The number 3 becomes the next digit in our result. 
Result so far: 453.0
Subtracting 387 from 492 leaves us with 105.
Append the next digit (1) from the dividend to 105 and continue with: 1051 / 129

On to step 6:
129 can be fit into 1051 8 times, resulting in a remainder of 19.
Record the quotient 8 as the next digit in the result. 
Result so far: 4538.0
Subtract 1032 from 1051 to get 19.
Fetch the next digit (0) from the dividend, attach it to 19 and continue: 190 / 129

Advancing to step 7:
The number 129 fits into 190 1 times, leaving a remainder of 61.
The next digit of our result is 1. 
Result so far: 45381.0
Deduct 129 from 190 and we're left with 61.
Grab the next digit (3) from the dividend, add it to 61, then carry on: 613 / 129

Moving on to step 8:
129 goes into 613 4 times with a remainder of 97.
Put 4 as the next digit of the answer. 
Result so far: 453814.0
If we take 516 away from 613, we end up with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Let's proceed to step 9:
The number 129 fits into 970 7 times, leaving a remainder of 67.
Record the quotient 7 as the next digit in the result. 
Result so far: 453814.7
Subtract 903 from 970 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 10:
129 can be fit into 670 5 times, resulting in a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 453814.75
The remainder is 25 after subtracting 645 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 11:
129 can be fit into 250 1 times, resulting in a remainder of 121.
The number 1 becomes the next digit in our result. 
Result so far: 453814.751
Subtract 129 from 250 to get 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Moving on to step 12:
129 can be fit into 1210 9 times, resulting in a remainder of 49.
Put 9 as the next digit of the answer. 
Result so far: 453814.7519
The remainder is 49 after subtracting 1161 from 1210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 13:
129 can be fit into 490 3 times, resulting in a remainder of 103.
Record the quotient 3 as the next digit in the result. 
Result so far: 453814.75193
Subtracting 387 from 490 leaves us with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Let's proceed to step 14:
When dividing 1030 by 129, we get 7 with a remainder of 127.
Record the quotient 7 as the next digit in the result. 
Result so far: 453814.751937
Deduct 903 from 1030 and we're left with 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

Going ahead to step 15:
The number 129 fits into 1270 9 times, leaving a remainder of 109.
Put 9 as the next digit of the answer. 
Result so far: 453814.7519379
Subtract 1161 from 1270 to get 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Advancing to step 16:
1090 divided by 129 is 8 with a remainder of 58.
The next digit of our result is 8. 
Result so far: 453814.75193798
The remainder is 58 after subtracting 1032 from 1090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The quotient of the division is 453814.75193798, and the remainder is 5.8e-08.