153129 ÷ 86 
We want to figure out the number of times 153129 can be divided by 86.

Advancing to step 1:
1 divided by 86 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 86

Let's proceed to step 2:
When dividing 15 by 86, we get 0 with a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 86

On to step 3:
When dividing 153 by 86, we get 1 with a remainder of 67.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 86 from 153 and we're left with 67.
Include the next digit (1) from the dividend after 67, then repeat: 671 / 86

On to step 4:
671 divided by 86 is 7 with a remainder of 69.
Use 7 as the next digit of our solution. 
Result so far: 17.0
The remainder is 69 after subtracting 602 from 671.
Include the next digit (2) from the dividend after 69, then repeat: 692 / 86

Going ahead to step 5:
692 divided by 86 is 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 178.0
The remainder is 4 after subtracting 688 from 692.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 86

Let's proceed to step 6:
86 goes into 49 0 times with a remainder of 49.
Use 0 as the next digit of our solution. 
Result so far: 1780.0
If we take 0 away from 49, we end up 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.

Advancing to step 7:
490 divided by 86 is 5 with a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 1780.5
Subtract 430 from 490 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 8:
If we divide 600 by 86, we get 6 and a remainder of 84.
Put 6 as the next digit of the answer. 
Result so far: 1780.56
Deduct 516 from 600 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 9:
When dividing 840 by 86, we get 9 with a remainder of 66.
Record the quotient 9 as the next digit in the result. 
Result so far: 1780.569
Deduct 774 from 840 and we're left 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.

Step 10:
86 can be fit into 660 7 times, resulting in a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 1780.5697
If we subtract 602 from 660, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 11:
580 divided by 86 is 6 with a remainder of 64.
The next digit of our result is 6. 
Result so far: 1780.56976
If we take 516 away from 580, we end up 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.

Step 12:
640 divided by 86 is 7 with a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 1780.569767
Subtracting 602 from 640 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 13:
The number 86 fits into 380 4 times, leaving a remainder of 36.
Write down 4 as next digit of the result. 
Result so far: 1780.5697674
Deduct 344 from 380 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 14:
The number 86 fits into 360 4 times, leaving a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 1780.56976744
Subtract 344 from 360 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 1780.56976744 with a balance of 1.6e-08.