409780 ÷ 91 
Our goal is to divide 409780 by 91.

On to step 1:
If we divide 4 by 91, we get 0 and 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.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 91

Step 2:
40 divided by 91 is 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Grab the next digit (9) from the dividend, add it to 40, then carry on: 409 / 91

Advancing to step 3:
91 goes into 409 4 times with a remainder of 45.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 364 from 409 to get 45.
Grab the next digit (7) from the dividend, add it to 45, then carry on: 457 / 91

Step 4:
When dividing 457 by 91, we get 5 with a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 45.0
Subtracting 455 from 457 leaves us with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 91

Moving on to step 5:
The number 91 fits into 28 0 times, leaving a remainder of 28.
Use 0 as the next digit of our solution. 
Result so far: 450.0
Subtract 0 from 28 to get 28.
Take the next digit (0) from the dividend and append it to 28, then repeat: 280 / 91

On to step 6:
91 goes into 280 3 times with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 4503.0
The remainder is 7 after subtracting 273 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
91 can be fit into 70 0 times, resulting in a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 4503.0
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 8:
If we divide 700 by 91, we get 7 and a remainder of 63.
Record the quotient 7 as the next digit in the result. 
Result so far: 4503.07
Deduct 637 from 700 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 9:
91 goes into 630 6 times with a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 4503.076
Deduct 546 from 630 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 10:
91 goes into 840 9 times with a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 4503.0769
Subtract 819 from 840 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 11:
The number 91 fits into 210 2 times, leaving a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 4503.07692
The remainder is 28 after subtracting 182 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 12:
280 divided by 91 is 3 with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 4503.076923
If we take 273 away from 280, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 13:
The number 91 fits into 70 0 times, leaving a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 4503.076923
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 14:
91 goes into 700 7 times with a remainder of 63.
The number 7 becomes the next digit in our result. 
Result so far: 4503.07692307
Subtracting 637 from 700 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

In conclusion, the division gives 4503.07692307 with a balance of 6.3e-08.