We're dividing 784409 by 91 
We want to figure out the number of times 784409 can be divided by 91.

Advancing to step 1:
When dividing 7 by 91, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 91

Advancing to step 2:
91 goes into 78 0 times with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Append the next digit (4) from the dividend to 78 and continue with: 784 / 91

Step 3:
91 can be fit into 784 8 times, resulting in a remainder of 56.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 728 from 784 and we're left with 56.
Take the next digit (4) from the dividend and append it to 56, then repeat: 564 / 91

Let's proceed to step 4:
564 divided by 91 is 6 with a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 86.0
If we take 546 away from 564, we end up with 18.
Fetch the next digit (0) from the dividend, attach it to 18 and continue: 180 / 91

Advancing to step 5:
180 divided by 91 is 1 with a remainder of 89.
The next digit of our result is 1. 
Result so far: 861.0
If we subtract 91 from 180, we get 89.
Take the next digit (9) from the dividend and append it to 89, then repeat: 899 / 91

Let's proceed to step 6:
91 goes into 899 9 times with a remainder of 80.
Write down 9 as next digit of the result. 
Result so far: 8619.0
Deduct 819 from 899 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 7:
When dividing 800 by 91, we get 8 with a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 8619.8
Subtracting 728 from 800 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 8:
If we divide 720 by 91, we get 7 and a remainder of 83.
Write down 7 as next digit of the result. 
Result so far: 8619.87
If we subtract 637 from 720, we get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

On to step 9:
If we divide 830 by 91, we get 9 and a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 8619.879
If we take 819 away from 830, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 10:
The number 91 fits into 110 1 times, leaving a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 8619.8791
Subtracting 91 from 110 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 11:
91 can be fit into 190 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 8619.87912
Subtracting 182 from 190 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 12:
The number 91 fits into 80 0 times, leaving a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 8619.87912
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 13:
800 divided by 91 is 8 with a remainder of 72.
Put 8 as the next digit of the answer. 
Result so far: 8619.8791208
If we take 728 away from 800, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 14:
91 can be fit into 720 7 times, resulting in a remainder of 83.
Use 7 as the next digit of our solution. 
Result so far: 8619.87912087
Subtract 637 from 720 to get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

The final result is 8619.87912087 with a remainder of 8.3e-08.