Let's divide 4091407 by 991
Our goal is to divide 4091407 by 991.

Moving on to step 1:
If we divide 4 by 991, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 991

On to step 2:
If we divide 40 by 991, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Append the next digit (9) from the dividend to 40 and continue with: 409 / 991

Step 3:
If we divide 409 by 991, we get 0 and a remainder of 409.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 409 after subtracting 0 from 409.
Fetch the next digit (1) from the dividend, attach it to 409 and continue: 4091 / 991

Step 4:
991 can be fit into 4091 4 times, resulting in a remainder of 127.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 3964 from 4091 to get 127.
Fetch the next digit (4) from the dividend, attach it to 127 and continue: 1274 / 991

Advancing to step 5:
991 can be fit into 1274 1 times, resulting in a remainder of 283.
Use 1 as the next digit of our solution. 
Result so far: 41.0
If we subtract 991 from 1274, we get 283.
Bring next digit (0) of the dividend behind the 283 and repeat the process: 2830 / 991

Going ahead to step 6:
991 can be fit into 2830 2 times, resulting in a remainder of 848.
Write down 2 as next digit of the result. 
Result so far: 412.0
If we subtract 1982 from 2830, we get 848.
Take the next digit (7) from the dividend and append it to 848, then repeat: 8487 / 991

Step 7:
When dividing 8487 by 991, we get 8 with a remainder of 559.
The number 8 becomes the next digit in our result. 
Result so far: 4128.0
If we subtract 7928 from 8487, we get 559.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5590, and continue the process.

Let's proceed to step 8:
991 can be fit into 5590 5 times, resulting in a remainder of 635.
The number 5 becomes the next digit in our result. 
Result so far: 4128.5
Deduct 4955 from 5590 and we're left with 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Step 9:
991 goes into 6350 6 times with a remainder of 404.
Put 6 as the next digit of the answer. 
Result so far: 4128.56
Subtract 5946 from 6350 to get 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Step 10:
991 can be fit into 4040 4 times, resulting in a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 4128.564
Subtracting 3964 from 4040 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 11:
760 divided by 991 is 0 with a remainder of 760.
Use 0 as the next digit of our solution. 
Result so far: 4128.564
If we subtract 0 from 760, we get 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

On to step 12:
The number 991 fits into 7600 7 times, leaving a remainder of 663.
Put 7 as the next digit of the answer. 
Result so far: 4128.56407
If we take 6937 away from 7600, we end up with 663.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6630, and continue the process.

Step 13:
The number 991 fits into 6630 6 times, leaving a remainder of 684.
Put 6 as the next digit of the answer. 
Result so far: 4128.564076
The remainder is 684 after subtracting 5946 from 6630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6840, and continue the process.

On to step 14:
991 goes into 6840 6 times with a remainder of 894.
Use 6 as the next digit of our solution. 
Result so far: 4128.5640766
Subtract 5946 from 6840 to get 894.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8940, and continue the process.

The final outcome is 4128.5640766, with a leftover of 8.94e-06.