We're dividing 451691 by 91 
Our goal is to divide 451691 by 91.

Advancing to step 1:
4 divided by 91 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 91

Moving on to step 2:
45 divided by 91 is 0 with a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 45 to get 45.
Fetch the next digit (1) from the dividend, attach it to 45 and continue: 451 / 91

Let's proceed to step 3:
When dividing 451 by 91, we get 4 with a remainder of 87.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 364 from 451 and we're left with 87.
Fetch the next digit (6) from the dividend, attach it to 87 and continue: 876 / 91

Advancing to step 4:
The number 91 fits into 876 9 times, leaving a remainder of 57.
Put 9 as the next digit of the answer. 
Result so far: 49.0
Subtract 819 from 876 to get 57.
Grab the next digit (9) from the dividend, add it to 57, then carry on: 579 / 91

Going ahead to step 5:
579 divided by 91 is 6 with a remainder of 33.
Write down 6 as next digit of the result. 
Result so far: 496.0
Subtracting 546 from 579 leaves us with 33.
Take the next digit (1) from the dividend and append it to 33, then repeat: 331 / 91

Going ahead to step 6:
The number 91 fits into 331 3 times, leaving a remainder of 58.
The number 3 becomes the next digit in our result. 
Result so far: 4963.0
The remainder is 58 after subtracting 273 from 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 7:
When dividing 580 by 91, we get 6 with a remainder of 34.
Write down 6 as next digit of the result. 
Result so far: 4963.6
Deduct 546 from 580 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 8:
If we divide 340 by 91, we get 3 and a remainder of 67.
Write down 3 as next digit of the result. 
Result so far: 4963.63
Subtracting 273 from 340 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 9:
91 goes into 670 7 times with a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 4963.637
Subtracting 637 from 670 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 10:
When dividing 330 by 91, we get 3 with a remainder of 57.
Use 3 as the next digit of our solution. 
Result so far: 4963.6373
If we subtract 273 from 330, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 11:
91 goes into 570 6 times with a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 4963.63736
If we take 546 away from 570, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 12:
The number 91 fits into 240 2 times, leaving a remainder of 58.
The number 2 becomes the next digit in our result. 
Result so far: 4963.637362
Deduct 182 from 240 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 13:
91 goes into 580 6 times with a remainder of 34.
Use 6 as the next digit of our solution. 
Result so far: 4963.6373626
If we take 546 away from 580, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 14:
340 divided by 91 is 3 with a remainder of 67.
Write down 3 as next digit of the result. 
Result so far: 4963.63736263
Subtract 273 from 340 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

After the division, we end up with 4963.63736263 and a remainder of 6.7e-08.