We look at the division of 139866 by 65 
We want to divide 139866 by 65.

Moving on to step 1:
The number 65 fits into 1 0 times, leaving 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.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 65

Advancing to step 2:
If we divide 13 by 65, we get 0 and a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Take the next digit (9) from the dividend and append it to 13, then repeat: 139 / 65

Let's proceed to step 3:
65 can be fit into 139 2 times, resulting in a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 130 from 139 and we're left with 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 65

On to step 4:
65 goes into 98 1 times with a remainder of 33.
Use 1 as the next digit of our solution. 
Result so far: 21.0
The remainder is 33 after subtracting 65 from 98.
Include the next digit (6) from the dividend after 33, then repeat: 336 / 65

Going ahead to step 5:
65 can be fit into 336 5 times, resulting in a remainder of 11.
The number 5 becomes the next digit in our result. 
Result so far: 215.0
The remainder is 11 after subtracting 325 from 336.
Bring next digit (6) of the dividend behind the 11 and repeat the process: 116 / 65

Going ahead to step 6:
When dividing 116 by 65, we get 1 with a remainder of 51.
The number 1 becomes the next digit in our result. 
Result so far: 2151.0
If we subtract 65 from 116, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 7:
65 can be fit into 510 7 times, resulting in a remainder of 55.
Put 7 as the next digit of the answer. 
Result so far: 2151.7
If we take 455 away from 510, we end up 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.

Moving on to step 8:
When dividing 550 by 65, we get 8 with a remainder of 30.
Write down 8 as next digit of the result. 
Result so far: 2151.78
If we take 520 away from 550, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 9:
When dividing 300 by 65, we get 4 with a remainder of 40.
The next digit of our result is 4. 
Result so far: 2151.784
The remainder is 40 after subtracting 260 from 300.
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:
When dividing 400 by 65, we get 6 with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 2151.7846
The remainder is 10 after subtracting 390 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 11:
65 can be fit into 100 1 times, resulting in a remainder of 35.
Put 1 as the next digit of the answer. 
Result so far: 2151.78461
Deduct 65 from 100 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 12:
When dividing 350 by 65, we get 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 2151.784615
Subtract 325 from 350 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 13:
If we divide 250 by 65, we get 3 and a remainder of 55.
Use 3 as the next digit of our solution. 
Result so far: 2151.7846153
If we subtract 195 from 250, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 14:
550 divided by 65 is 8 with a remainder of 30.
Record the quotient 8 as the next digit in the result. 
Result so far: 2151.78461538
Subtract 520 from 550 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 2151.78461538 with a remainder of 3e-08.