783986 divided by 91 
Let's see how many times 91 fits into 783986.

Moving on to step 1:
91 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 91

Advancing to step 2:
If we divide 78 by 91, we get 0 and a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Grab the next digit (3) from the dividend, add it to 78, then carry on: 783 / 91

Advancing to step 3:
When dividing 783 by 91, we get 8 with a remainder of 55.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 728 from 783 to get 55.
Grab the next digit (9) from the dividend, add it to 55, then carry on: 559 / 91

Moving on to step 4:
If we divide 559 by 91, we get 6 and a remainder of 13.
Put 6 as the next digit of the answer. 
Result so far: 86.0
If we subtract 546 from 559, we get 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 91

On to step 5:
If we divide 138 by 91, we get 1 and a remainder of 47.
The next digit of our result is 1. 
Result so far: 861.0
The remainder is 47 after subtracting 91 from 138.
Take the next digit (6) from the dividend and append it to 47, then repeat: 476 / 91

Step 6:
When dividing 476 by 91, we get 5 with a remainder of 21.
Record the quotient 5 as the next digit in the result. 
Result so far: 8615.0
If we subtract 455 from 476, we 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.

Going ahead to step 7:
When dividing 210 by 91, we get 2 with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 8615.2
Deduct 182 from 210 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 8:
280 divided by 91 is 3 with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 8615.23
Deduct 273 from 280 and we're left 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.

Let's proceed to step 9:
91 can be fit into 70 0 times, resulting in a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 8615.23
Deduct 0 from 70 and we're left 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.

Step 10:
The number 91 fits into 700 7 times, leaving a remainder of 63.
The next digit of our result is 7. 
Result so far: 8615.2307
The remainder is 63 after subtracting 637 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 11:
The number 91 fits into 630 6 times, leaving a remainder of 84.
Use 6 as the next digit of our solution. 
Result so far: 8615.23076
The remainder is 84 after subtracting 546 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 12:
If we divide 840 by 91, we get 9 and a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 8615.230769
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.

Going ahead to step 13:
210 divided by 91 is 2 with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 8615.2307692
Subtracting 182 from 210 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 14:
91 goes into 280 3 times with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 8615.23076923
Subtract 273 from 280 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

In conclusion, the division gives 8615.23076923 with a balance of 7e-09.