We're dividing 11391666 by 391 
We want to figure out the number of times 11391666 can be divided by 391.

Moving on to step 1:
1 divided by 391 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 391

On to step 2:
If we divide 11 by 391, we get 0 and a remainder of 11.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 11, we end up with 11.
Take the next digit (3) from the dividend and append it to 11, then repeat: 113 / 391

Going ahead to step 3:
391 goes into 113 0 times with a remainder of 113.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 113 to get 113.
Bring next digit (9) of the dividend behind the 113 and repeat the process: 1139 / 391

Going ahead to step 4:
391 goes into 1139 2 times with a remainder of 357.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 782 from 1139 and we're left with 357.
Take the next digit (1) from the dividend and append it to 357, then repeat: 3571 / 391

Advancing to step 5:
The number 391 fits into 3571 9 times, leaving a remainder of 52.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
If we subtract 3519 from 3571, we get 52.
Take the next digit (6) from the dividend and append it to 52, then repeat: 526 / 391

Advancing to step 6:
391 can be fit into 526 1 times, resulting in a remainder of 135.
Record the quotient 1 as the next digit in the result. 
Result so far: 291.0
Subtracting 391 from 526 leaves us with 135.
Include the next digit (6) from the dividend after 135, then repeat: 1356 / 391

Advancing to step 7:
When dividing 1356 by 391, we get 3 with a remainder of 183.
Use 3 as the next digit of our solution. 
Result so far: 2913.0
If we take 1173 away from 1356, we end up with 183.
Include the next digit (6) from the dividend after 183, then repeat: 1836 / 391

On to step 8:
If we divide 1836 by 391, we get 4 and a remainder of 272.
Put 4 as the next digit of the answer. 
Result so far: 29134.0
If we take 1564 away from 1836, we end up with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

On to step 9:
2720 divided by 391 is 6 with a remainder of 374.
Use 6 as the next digit of our solution. 
Result so far: 29134.6
Subtracting 2346 from 2720 leaves us with 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

On to step 10:
The number 391 fits into 3740 9 times, leaving a remainder of 221.
Write down 9 as next digit of the result. 
Result so far: 29134.69
The remainder is 221 after subtracting 3519 from 3740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Moving on to step 11:
The number 391 fits into 2210 5 times, leaving a remainder of 255.
Put 5 as the next digit of the answer. 
Result so far: 29134.695
If we take 1955 away from 2210, we end up with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Let's proceed to step 12:
391 can be fit into 2550 6 times, resulting in a remainder of 204.
The next digit of our result is 6. 
Result so far: 29134.6956
Subtract 2346 from 2550 to get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Going ahead to step 13:
391 can be fit into 2040 5 times, resulting in a remainder of 85.
The next digit of our result is 5. 
Result so far: 29134.69565
If we subtract 1955 from 2040, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Step 14:
391 can be fit into 850 2 times, resulting in a remainder of 68.
The next digit of our result is 2. 
Result so far: 29134.695652
Deduct 782 from 850 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 15:
680 divided by 391 is 1 with a remainder of 289.
Write down 1 as next digit of the result. 
Result so far: 29134.6956521
Subtract 391 from 680 to get 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Advancing to step 16:
The number 391 fits into 2890 7 times, leaving a remainder of 153.
The next digit of our result is 7. 
Result so far: 29134.69565217
The remainder is 153 after subtracting 2737 from 2890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

The final outcome is 29134.69565217, with a leftover of 1.53e-07.