We're dividing 121257 by 934 
Let's see how many times 934 fits into 121257.

On to step 1:
934 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 934

Going ahead to step 2:
12 divided by 934 is 0 with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 934

Advancing to step 3:
If we divide 121 by 934, we get 0 and a remainder of 121.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 121 and we're left with 121.
Include the next digit (2) from the dividend after 121, then repeat: 1212 / 934

Let's proceed to step 4:
934 goes into 1212 1 times with a remainder of 278.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 934 from 1212 to get 278.
Include the next digit (5) from the dividend after 278, then repeat: 2785 / 934

Going ahead to step 5:
2785 divided by 934 is 2 with a remainder of 917.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 1868 from 2785 leaves us with 917.
Grab the next digit (7) from the dividend, add it to 917, then carry on: 9177 / 934

Let's proceed to step 6:
934 can be fit into 9177 9 times, resulting in a remainder of 771.
Put 9 as the next digit of the answer. 
Result so far: 129.0
The remainder is 771 after subtracting 8406 from 9177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7710, and continue the process.

Step 7:
934 goes into 7710 8 times with a remainder of 238.
Write down 8 as next digit of the result. 
Result so far: 129.8
Deduct 7472 from 7710 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Going ahead to step 8:
934 can be fit into 2380 2 times, resulting in a remainder of 512.
Write down 2 as next digit of the result. 
Result so far: 129.82
If we take 1868 away from 2380, we end up with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Let's proceed to step 9:
The number 934 fits into 5120 5 times, leaving a remainder of 450.
Write down 5 as next digit of the result. 
Result so far: 129.825
Subtracting 4670 from 5120 leaves us with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 10:
4500 divided by 934 is 4 with a remainder of 764.
The number 4 becomes the next digit in our result. 
Result so far: 129.8254
Subtract 3736 from 4500 to get 764.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7640, and continue the process.

Going ahead to step 11:
If we divide 7640 by 934, we get 8 and a remainder of 168.
Write down 8 as next digit of the result. 
Result so far: 129.82548
If we subtract 7472 from 7640, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 12:
934 goes into 1680 1 times with a remainder of 746.
Write down 1 as next digit of the result. 
Result so far: 129.825481
If we take 934 away from 1680, we end up with 746.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7460, and continue the process.

Step 13:
934 goes into 7460 7 times with a remainder of 922.
The next digit of our result is 7. 
Result so far: 129.8254817
Subtracting 6538 from 7460 leaves us with 922.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9220, and continue the process.

Going ahead to step 14:
When dividing 9220 by 934, we get 9 with a remainder of 814.
Use 9 as the next digit of our solution. 
Result so far: 129.82548179
Subtract 8406 from 9220 to get 814.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8140, and continue the process.

Our division results in 129.82548179 with a remaining 8.14e-07.