883421 ÷ 91 
We want to figure out the number of times 883421 can be divided by 91.

Moving on to step 1:
If we divide 8 by 91, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 91

Going ahead to step 2:
88 divided by 91 is 0 with a remainder of 88.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 88, we get 88.
Fetch the next digit (3) from the dividend, attach it to 88 and continue: 883 / 91

Advancing to step 3:
When dividing 883 by 91, we get 9 with a remainder of 64.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Deduct 819 from 883 and we're left with 64.
Bring next digit (4) of the dividend behind the 64 and repeat the process: 644 / 91

Advancing to step 4:
The number 91 fits into 644 7 times, leaving a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 97.0
Subtract 637 from 644 to get 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 91

Going ahead to step 5:
91 can be fit into 72 0 times, resulting in a remainder of 72.
The next digit of our result is 0. 
Result so far: 970.0
If we take 0 away from 72, we end up with 72.
Take the next digit (1) from the dividend and append it to 72, then repeat: 721 / 91

Advancing to step 6:
If we divide 721 by 91, we get 7 and a remainder of 84.
Write down 7 as next digit of the result. 
Result so far: 9707.0
Deduct 637 from 721 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 7:
When dividing 840 by 91, we get 9 with a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 9707.9
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.

Moving on to step 8:
91 can be fit into 210 2 times, resulting in a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 9707.92
If we subtract 182 from 210, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 9:
91 goes into 280 3 times with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 9707.923
If we subtract 273 from 280, we 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.

Advancing to step 10:
When dividing 70 by 91, we get 0 with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 9707.923
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 11:
If we divide 700 by 91, we get 7 and a remainder of 63.
The number 7 becomes the next digit in our result. 
Result so far: 9707.92307
Subtract 637 from 700 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Let's proceed to step 12:
If we divide 630 by 91, we get 6 and a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 9707.923076
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.

Advancing to step 13:
When dividing 840 by 91, we get 9 with a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 9707.9230769
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.

Advancing to step 14:
The number 91 fits into 210 2 times, leaving a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 9707.92307692
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.

The final outcome is 9707.92307692, with a leftover of 2.8e-08.