139763 ÷ 78 
Let's see how many times 78 fits into 139763.

Let's proceed to step 1:
1 divided by 78 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 78

Advancing to step 2:
13 divided by 78 is 0 with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 78

Step 3:
When dividing 139 by 78, we get 1 with a remainder of 61.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 78 from 139 leaves us with 61.
Grab the next digit (7) from the dividend, add it to 61, then carry on: 617 / 78

Step 4:
617 divided by 78 is 7 with a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 17.0
Deduct 546 from 617 and we're left with 71.
Take the next digit (6) from the dividend and append it to 71, then repeat: 716 / 78

On to step 5:
If we divide 716 by 78, we get 9 and a remainder of 14.
The next digit of our result is 9. 
Result so far: 179.0
If we subtract 702 from 716, we get 14.
Take the next digit (3) from the dividend and append it to 14, then repeat: 143 / 78

Going ahead to step 6:
If we divide 143 by 78, we get 1 and a remainder of 65.
Use 1 as the next digit of our solution. 
Result so far: 1791.0
The remainder is 65 after subtracting 78 from 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 7:
78 goes into 650 8 times with a remainder of 26.
Use 8 as the next digit of our solution. 
Result so far: 1791.8
Subtract 624 from 650 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 8:
260 divided by 78 is 3 with a remainder of 26.
Put 3 as the next digit of the answer. 
Result so far: 1791.83
Subtract 234 from 260 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 9:
78 goes into 260 3 times with a remainder of 26.
The number 3 becomes the next digit in our result. 
Result so far: 1791.833
The remainder is 26 after subtracting 234 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

After the division, we end up with 1791.833 and a remainder of 0.0026.