We're dividing 121900 by 83 
We want to divide 121900 by 83.

Step 1:
1 divided by 83 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 83

Step 2:
83 can be fit into 12 0 times, resulting in a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 83

Advancing to step 3:
If we divide 121 by 83, we get 1 and a remainder of 38.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 38 after subtracting 83 from 121.
Fetch the next digit (9) from the dividend, attach it to 38 and continue: 389 / 83

Going ahead to step 4:
If we divide 389 by 83, we get 4 and a remainder of 57.
The next digit of our result is 4. 
Result so far: 14.0
Subtract 332 from 389 to get 57.
Bring next digit (0) of the dividend behind the 57 and repeat the process: 570 / 83

Moving on to step 5:
The number 83 fits into 570 6 times, leaving a remainder of 72.
Put 6 as the next digit of the answer. 
Result so far: 146.0
The remainder is 72 after subtracting 498 from 570.
Grab the next digit (0) from the dividend, add it to 72, then carry on: 720 / 83

On to step 6:
The number 83 fits into 720 8 times, leaving a remainder of 56.
The next digit of our result is 8. 
Result so far: 1468.0
If we take 664 away from 720, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 7:
If we divide 560 by 83, we get 6 and a remainder of 62.
Use 6 as the next digit of our solution. 
Result so far: 1468.6
If we subtract 498 from 560, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 8:
620 divided by 83 is 7 with a remainder of 39.
Write down 7 as next digit of the result. 
Result so far: 1468.67
Subtract 581 from 620 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 9:
When dividing 390 by 83, we get 4 with a remainder of 58.
Use 4 as the next digit of our solution. 
Result so far: 1468.674
The remainder is 58 after subtracting 332 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 10:
580 divided by 83 is 6 with a remainder of 82.
Use 6 as the next digit of our solution. 
Result so far: 1468.6746
The remainder is 82 after subtracting 498 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Let's proceed to step 11:
If we divide 820 by 83, we get 9 and a remainder of 73.
The next digit of our result is 9. 
Result so far: 1468.67469
Subtracting 747 from 820 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 12:
If we divide 730 by 83, we get 8 and a remainder of 66.
The next digit of our result is 8. 
Result so far: 1468.674698
If we take 664 away from 730, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 13:
When dividing 660 by 83, we get 7 with a remainder of 79.
Put 7 as the next digit of the answer. 
Result so far: 1468.6746987
Subtract 581 from 660 to get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 14:
When dividing 790 by 83, we get 9 with a remainder of 43.
Put 9 as the next digit of the answer. 
Result so far: 1468.67469879
Subtract 747 from 790 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.

After the division, we end up with 1468.67469879 and a remainder of 4.3e-08.