433664 ÷ 91 
Let's see how many times 91 fits into 433664.

On to step 1:
When dividing 4 by 91, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 91

Step 2:
If we divide 43 by 91, we get 0 and a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 43 to get 43.
Bring next digit (3) of the dividend behind the 43 and repeat the process: 433 / 91

Step 3:
91 goes into 433 4 times with a remainder of 69.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 69 after subtracting 364 from 433.
Include the next digit (6) from the dividend after 69, then repeat: 696 / 91

Going ahead to step 4:
91 goes into 696 7 times with a remainder of 59.
Write down 7 as next digit of the result. 
Result so far: 47.0
Subtract 637 from 696 to get 59.
Bring next digit (6) of the dividend behind the 59 and repeat the process: 596 / 91

Let's proceed to step 5:
91 goes into 596 6 times with a remainder of 50.
The next digit of our result is 6. 
Result so far: 476.0
Deduct 546 from 596 and we're left with 50.
Append the next digit (4) from the dividend to 50 and continue with: 504 / 91

Advancing to step 6:
The number 91 fits into 504 5 times, leaving a remainder of 49.
Write down 5 as next digit of the result. 
Result so far: 4765.0
If we take 455 away from 504, 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.

Going ahead to step 7:
91 can be fit into 490 5 times, resulting in a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 4765.5
If we take 455 away from 490, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 8:
If we divide 350 by 91, we get 3 and a remainder of 77.
Put 3 as the next digit of the answer. 
Result so far: 4765.53
Subtracting 273 from 350 leaves us with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 9:
91 can be fit into 770 8 times, resulting in a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 4765.538
Subtract 728 from 770 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 10:
If we divide 420 by 91, we get 4 and a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 4765.5384
If we take 364 away from 420, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 11:
91 can be fit into 560 6 times, resulting in a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 4765.53846
The remainder is 14 after subtracting 546 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 12:
When dividing 140 by 91, we get 1 with a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 4765.538461
If we take 91 away from 140, 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.

Let's proceed to step 13:
If we divide 490 by 91, we get 5 and a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 4765.5384615
Deduct 455 from 490 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 14:
The number 91 fits into 350 3 times, leaving a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 4765.53846153
Deduct 273 from 350 and we're left with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

The final outcome is 4765.53846153, with a leftover of 7.7e-08.