Let's divide 23153428 by 129
We want to figure out the number of times 23153428 can be divided by 129.

On to step 1:
When dividing 2 by 129, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 129

Going ahead to step 2:
23 divided by 129 is 0 with a remainder of 23.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 23 after subtracting 0 from 23.
Fetch the next digit (1) from the dividend, attach it to 23 and continue: 231 / 129

Advancing to step 3:
129 can be fit into 231 1 times, resulting in a remainder of 102.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 129 from 231 and we're left with 102.
Take the next digit (5) from the dividend and append it to 102, then repeat: 1025 / 129

Moving on to step 4:
If we divide 1025 by 129, we get 7 and a remainder of 122.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Subtracting 903 from 1025 leaves us with 122.
Fetch the next digit (3) from the dividend, attach it to 122 and continue: 1223 / 129

Going ahead to step 5:
129 can be fit into 1223 9 times, resulting in a remainder of 62.
The number 9 becomes the next digit in our result. 
Result so far: 179.0
The remainder is 62 after subtracting 1161 from 1223.
Take the next digit (4) from the dividend and append it to 62, then repeat: 624 / 129

Step 6:
129 can be fit into 624 4 times, resulting in a remainder of 108.
Record the quotient 4 as the next digit in the result. 
Result so far: 1794.0
Deduct 516 from 624 and we're left with 108.
Fetch the next digit (2) from the dividend, attach it to 108 and continue: 1082 / 129

Moving on to step 7:
When dividing 1082 by 129, we get 8 with a remainder of 50.
Use 8 as the next digit of our solution. 
Result so far: 17948.0
Subtract 1032 from 1082 to get 50.
Fetch the next digit (8) from the dividend, attach it to 50 and continue: 508 / 129

Going ahead to step 8:
The number 129 fits into 508 3 times, leaving a remainder of 121.
Write down 3 as next digit of the result. 
Result so far: 179483.0
If we take 387 away from 508, we end up with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Step 9:
1210 divided by 129 is 9 with a remainder of 49.
Put 9 as the next digit of the answer. 
Result so far: 179483.9
Deduct 1161 from 1210 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 10:
When dividing 490 by 129, we get 3 with a remainder of 103.
The number 3 becomes the next digit in our result. 
Result so far: 179483.93
Subtract 387 from 490 to get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

On to step 11:
When dividing 1030 by 129, we get 7 with a remainder of 127.
The number 7 becomes the next digit in our result. 
Result so far: 179483.937
Subtract 903 from 1030 to get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 12:
129 can be fit into 1270 9 times, resulting in a remainder of 109.
Use 9 as the next digit of our solution. 
Result so far: 179483.9379
If we take 1161 away from 1270, we end up with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Step 13:
1090 divided by 129 is 8 with a remainder of 58.
Put 8 as the next digit of the answer. 
Result so far: 179483.93798
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.

Moving on to step 14:
580 divided by 129 is 4 with a remainder of 64.
The number 4 becomes the next digit in our result. 
Result so far: 179483.937984
Deduct 516 from 580 and we're left 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.

Advancing to step 15:
The number 129 fits into 640 4 times, leaving a remainder of 124.
Use 4 as the next digit of our solution. 
Result so far: 179483.9379844
Subtracting 516 from 640 leaves us 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.

Our division results in 179483.9379844 with a remaining 1.24e-06.