153439 ÷ 85 
Our goal is to divide 153439 by 85.

Going ahead to step 1:
When dividing 1 by 85, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 85

Let's proceed to step 2:
The number 85 fits into 15 0 times, leaving a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Take the next digit (3) from the dividend and append it to 15, then repeat: 153 / 85

On to step 3:
153 divided by 85 is 1 with a remainder of 68.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 68 after subtracting 85 from 153.
Grab the next digit (4) from the dividend, add it to 68, then carry on: 684 / 85

Step 4:
85 can be fit into 684 8 times, resulting in a remainder of 4.
The next digit of our result is 8. 
Result so far: 18.0
If we take 680 away from 684, we end up with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 85

Moving on to step 5:
If we divide 43 by 85, we get 0 and a remainder of 43.
The next digit of our result is 0. 
Result so far: 180.0
The remainder is 43 after subtracting 0 from 43.
Grab the next digit (9) from the dividend, add it to 43, then carry on: 439 / 85

Advancing to step 6:
When dividing 439 by 85, we get 5 with a remainder of 14.
Put 5 as the next digit of the answer. 
Result so far: 1805.0
If we take 425 away from 439, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 7:
85 goes into 140 1 times with a remainder of 55.
Use 1 as the next digit of our solution. 
Result so far: 1805.1
Subtracting 85 from 140 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 8:
The number 85 fits into 550 6 times, leaving a remainder of 40.
The next digit of our result is 6. 
Result so far: 1805.16
Subtracting 510 from 550 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.

On to step 9:
If we divide 400 by 85, we get 4 and a remainder of 60.
Write down 4 as next digit of the result. 
Result so far: 1805.164
Subtract 340 from 400 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.

On to step 10:
The number 85 fits into 600 7 times, leaving a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 1805.1647
If we take 595 away from 600, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 11:
50 divided by 85 is 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 1805.1647
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 12:
500 divided by 85 is 5 with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 1805.164705
The remainder is 75 after subtracting 425 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 13:
85 can be fit into 750 8 times, resulting in a remainder of 70.
Record the quotient 8 as the next digit in the result. 
Result so far: 1805.1647058
If we take 680 away from 750, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 14:
If we divide 700 by 85, we get 8 and a remainder of 20.
The next digit of our result is 8. 
Result so far: 1805.16470588
If we subtract 680 from 700, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 1805.16470588, with a leftover of 2e-08.