434830 ÷ 91 
We want to figure out the number of times 434830 can be divided by 91.

Advancing to step 1:
When dividing 4 by 91, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 91

On to step 2:
The number 91 fits into 43 0 times, leaving a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 43 leaves us with 43.
Fetch the next digit (4) from the dividend, attach it to 43 and continue: 434 / 91

Advancing to step 3:
91 goes into 434 4 times with a remainder of 70.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 364 from 434 leaves us with 70.
Grab the next digit (8) from the dividend, add it to 70, then carry on: 708 / 91

Let's proceed to step 4:
The number 91 fits into 708 7 times, leaving a remainder of 71.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
If we take 637 away from 708, we end up with 71.
Fetch the next digit (3) from the dividend, attach it to 71 and continue: 713 / 91

Advancing to step 5:
713 divided by 91 is 7 with a remainder of 76.
Record the quotient 7 as the next digit in the result. 
Result so far: 477.0
Subtracting 637 from 713 leaves us with 76.
Append the next digit (0) from the dividend to 76 and continue with: 760 / 91

Advancing to step 6:
91 goes into 760 8 times with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 4778.0
The remainder is 32 after subtracting 728 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 7:
320 divided by 91 is 3 with a remainder of 47.
Use 3 as the next digit of our solution. 
Result so far: 4778.3
Deduct 273 from 320 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 8:
The number 91 fits into 470 5 times, leaving a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 4778.35
Deduct 455 from 470 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 9:
When dividing 150 by 91, we get 1 with a remainder of 59.
The next digit of our result is 1. 
Result so far: 4778.351
The remainder is 59 after subtracting 91 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 10:
If we divide 590 by 91, we get 6 and a remainder of 44.
The next digit of our result is 6. 
Result so far: 4778.3516
If we take 546 away from 590, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 11:
The number 91 fits into 440 4 times, leaving a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 4778.35164
If we subtract 364 from 440, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 12:
If we divide 760 by 91, we get 8 and a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 4778.351648
Subtract 728 from 760 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 13:
When dividing 320 by 91, we get 3 with a remainder of 47.
Write down 3 as next digit of the result. 
Result so far: 4778.3516483
Subtracting 273 from 320 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 14:
470 divided by 91 is 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 4778.35164835
Subtracting 455 from 470 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The quotient of the division is 4778.35164835, and the remainder is 1.5e-08.