Let's divide 661099 by 78
Let's see how many times 78 fits into 661099.

Advancing to step 1:
If we divide 6 by 78, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 78

On to step 2:
66 divided by 78 is 0 with a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Take the next digit (1) from the dividend and append it to 66, then repeat: 661 / 78

On to step 3:
78 can be fit into 661 8 times, resulting in a remainder of 37.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 624 from 661, we get 37.
Append the next digit (0) from the dividend to 37 and continue with: 370 / 78

Moving on to step 4:
78 can be fit into 370 4 times, resulting in a remainder of 58.
The next digit of our result is 4. 
Result so far: 84.0
If we take 312 away from 370, we end up with 58.
Bring next digit (9) of the dividend behind the 58 and repeat the process: 589 / 78

Moving on to step 5:
When dividing 589 by 78, we get 7 with a remainder of 43.
The next digit of our result is 7. 
Result so far: 847.0
The remainder is 43 after subtracting 546 from 589.
Fetch the next digit (9) from the dividend, attach it to 43 and continue: 439 / 78

Going ahead to step 6:
78 can be fit into 439 5 times, resulting in a remainder of 49.
The next digit of our result is 5. 
Result so far: 8475.0
If we take 390 away from 439, 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.

Moving on to step 7:
490 divided by 78 is 6 with a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 8475.6
If we subtract 468 from 490, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 8:
When dividing 220 by 78, we get 2 with a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 8475.62
The remainder is 64 after subtracting 156 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 9:
78 can be fit into 640 8 times, resulting in a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 8475.628
Subtracting 624 from 640 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 10:
78 can be fit into 160 2 times, resulting in a remainder of 4.
The next digit of our result is 2. 
Result so far: 8475.6282
If we take 156 away from 160, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 11:
78 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 8475.6282
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
400 divided by 78 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 8475.628205
Subtract 390 from 400 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.

Step 13:
The number 78 fits into 100 1 times, leaving a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 8475.6282051
Deduct 78 from 100 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 14:
78 can be fit into 220 2 times, resulting in a remainder of 64.
The next digit of our result is 2. 
Result so far: 8475.62820512
The remainder is 64 after subtracting 156 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Our division results in 8475.62820512 with a remaining 6.4e-08.