We look at the division of 129208 by 84 
We're looking to find how many times 84 goes into 129208.

On to step 1:
If we divide 1 by 84, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 84

Going ahead to step 2:
When dividing 12 by 84, we get 0 with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Include the next digit (9) from the dividend after 12, then repeat: 129 / 84

Going ahead to step 3:
129 divided by 84 is 1 with a remainder of 45.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 84 from 129 and we're left with 45.
Bring next digit (2) of the dividend behind the 45 and repeat the process: 452 / 84

Step 4:
If we divide 452 by 84, we get 5 and a remainder of 32.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Deduct 420 from 452 and we're left with 32.
Append the next digit (0) from the dividend to 32 and continue with: 320 / 84

On to step 5:
84 goes into 320 3 times with a remainder of 68.
The number 3 becomes the next digit in our result. 
Result so far: 153.0
The remainder is 68 after subtracting 252 from 320.
Append the next digit (8) from the dividend to 68 and continue with: 688 / 84

On to step 6:
When dividing 688 by 84, we get 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 1538.0
Deduct 672 from 688 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
When dividing 160 by 84, we get 1 with a remainder of 76.
Write down 1 as next digit of the result. 
Result so far: 1538.1
Subtract 84 from 160 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 8:
When dividing 760 by 84, we get 9 with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 1538.19
Subtract 756 from 760 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
84 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 1538.19
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
84 goes into 400 4 times with a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 1538.1904
If we subtract 336 from 400, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 11:
If we divide 640 by 84, we get 7 and a remainder of 52.
Put 7 as the next digit of the answer. 
Result so far: 1538.19047
Subtracting 588 from 640 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 12:
520 divided by 84 is 6 with a remainder of 16.
The next digit of our result is 6. 
Result so far: 1538.190476
The remainder is 16 after subtracting 504 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 13:
84 goes into 160 1 times with a remainder of 76.
Record the quotient 1 as the next digit in the result. 
Result so far: 1538.1904761
The remainder is 76 after subtracting 84 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 14:
The number 84 fits into 760 9 times, leaving a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 1538.19047619
If we take 756 away from 760, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 1538.19047619, with a leftover of 4e-09.