We're dividing 139610 by 35 
Let's see how many times 35 fits into 139610.

Going ahead to step 1:
If we divide 1 by 35, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 35

On to step 2:
When dividing 13 by 35, we get 0 with a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Take the next digit (9) from the dividend and append it to 13, then repeat: 139 / 35

Step 3:
The number 35 fits into 139 3 times, leaving a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 105 from 139 and we're left with 34.
Bring next digit (6) of the dividend behind the 34 and repeat the process: 346 / 35

On to step 4:
If we divide 346 by 35, we get 9 and a remainder of 31.
The next digit of our result is 9. 
Result so far: 39.0
If we subtract 315 from 346, we get 31.
Take the next digit (1) from the dividend and append it to 31, then repeat: 311 / 35

Moving on to step 5:
The number 35 fits into 311 8 times, leaving a remainder of 31.
The next digit of our result is 8. 
Result so far: 398.0
Subtract 280 from 311 to get 31.
Take the next digit (0) from the dividend and append it to 31, then repeat: 310 / 35

Going ahead to step 6:
If we divide 310 by 35, we get 8 and a remainder of 30.
Put 8 as the next digit of the answer. 
Result so far: 3988.0
Subtract 280 from 310 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.

Going ahead to step 7:
35 can be fit into 300 8 times, resulting in a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 3988.8
If we subtract 280 from 300, 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.

Let's proceed to step 8:
If we divide 200 by 35, we get 5 and a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 3988.85
Subtract 175 from 200 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.

Going ahead to step 9:
The number 35 fits into 250 7 times, leaving a remainder of 5.
The next digit of our result is 7. 
Result so far: 3988.857
If we subtract 245 from 250, we get 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 10:
When dividing 50 by 35, we get 1 with a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 3988.8571
Subtracting 35 from 50 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 11:
35 goes into 150 4 times with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 3988.85714
Subtract 140 from 150 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 12:
If we divide 100 by 35, we get 2 and a remainder of 30.
The number 2 becomes the next digit in our result. 
Result so far: 3988.857142
If we subtract 70 from 100, we 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.

Advancing to step 13:
35 can be fit into 300 8 times, resulting in a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 3988.8571428
If we subtract 280 from 300, 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.

Going ahead to step 14:
The number 35 fits into 200 5 times, leaving a remainder of 25.
The next digit of our result is 5. 
Result so far: 3988.85714285
Subtracting 175 from 200 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 3988.85714285, with a leftover of 2.5e-08.