91199126 ÷ 678 
Our goal is to divide 91199126 by 678.

Advancing to step 1:
9 divided by 678 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 678

On to step 2:
678 goes into 91 0 times with a remainder of 91.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Include the next digit (1) from the dividend after 91, then repeat: 911 / 678

Let's proceed to step 3:
The number 678 fits into 911 1 times, leaving a remainder of 233.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 233 after subtracting 678 from 911.
Bring next digit (9) of the dividend behind the 233 and repeat the process: 2339 / 678

Going ahead to step 4:
The number 678 fits into 2339 3 times, leaving a remainder of 305.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtract 2034 from 2339 to get 305.
Fetch the next digit (9) from the dividend, attach it to 305 and continue: 3059 / 678

Going ahead to step 5:
The number 678 fits into 3059 4 times, leaving a remainder of 347.
Put 4 as the next digit of the answer. 
Result so far: 134.0
The remainder is 347 after subtracting 2712 from 3059.
Grab the next digit (1) from the dividend, add it to 347, then carry on: 3471 / 678

Let's proceed to step 6:
678 can be fit into 3471 5 times, resulting in a remainder of 81.
The next digit of our result is 5. 
Result so far: 1345.0
If we subtract 3390 from 3471, we get 81.
Include the next digit (2) from the dividend after 81, then repeat: 812 / 678

On to step 7:
678 goes into 812 1 times with a remainder of 134.
Use 1 as the next digit of our solution. 
Result so far: 13451.0
If we take 678 away from 812, we end up with 134.
Fetch the next digit (6) from the dividend, attach it to 134 and continue: 1346 / 678

Step 8:
When dividing 1346 by 678, we get 1 with a remainder of 668.
Record the quotient 1 as the next digit in the result. 
Result so far: 134511.0
The remainder is 668 after subtracting 678 from 1346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6680, and continue the process.

Advancing to step 9:
6680 divided by 678 is 9 with a remainder of 578.
Record the quotient 9 as the next digit in the result. 
Result so far: 134511.9
If we take 6102 away from 6680, we end up with 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Let's proceed to step 10:
When dividing 5780 by 678, we get 8 with a remainder of 356.
Use 8 as the next digit of our solution. 
Result so far: 134511.98
Subtracting 5424 from 5780 leaves us with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

On to step 11:
The number 678 fits into 3560 5 times, leaving a remainder of 170.
Write down 5 as next digit of the result. 
Result so far: 134511.985
The remainder is 170 after subtracting 3390 from 3560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 12:
678 goes into 1700 2 times with a remainder of 344.
Write down 2 as next digit of the result. 
Result so far: 134511.9852
Subtracting 1356 from 1700 leaves us with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Step 13:
The number 678 fits into 3440 5 times, leaving a remainder of 50.
The next digit of our result is 5. 
Result so far: 134511.98525
Subtract 3390 from 3440 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 14:
If we divide 500 by 678, we get 0 and a remainder of 500.
Write down 0 as next digit of the result. 
Result so far: 134511.98525
If we take 0 away from 500, we end up with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Advancing to step 15:
If we divide 5000 by 678, we get 7 and a remainder of 254.
The next digit of our result is 7. 
Result so far: 134511.9852507
The remainder is 254 after subtracting 4746 from 5000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Step 16:
The number 678 fits into 2540 3 times, leaving a remainder of 506.
The next digit of our result is 3. 
Result so far: 134511.98525073
The remainder is 506 after subtracting 2034 from 2540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

The final outcome is 134511.98525073, with a leftover of 5.06e-07.