We're dividing 91217722 by 448 
We want to divide 91217722 by 448.

Let's proceed to step 1:
If we divide 9 by 448, we get 0 and a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 448

Let's proceed to step 2:
If we divide 91 by 448, we get 0 and a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Append the next digit (2) from the dividend to 91 and continue with: 912 / 448

Going ahead to step 3:
The number 448 fits into 912 2 times, leaving a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 896 from 912 leaves us with 16.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 448

Step 4:
When dividing 161 by 448, we get 0 with a remainder of 161.
Use 0 as the next digit of our solution. 
Result so far: 20.0
If we take 0 away from 161, we end up with 161.
Include the next digit (7) from the dividend after 161, then repeat: 1617 / 448

On to step 5:
If we divide 1617 by 448, we get 3 and a remainder of 273.
Record the quotient 3 as the next digit in the result. 
Result so far: 203.0
If we take 1344 away from 1617, we end up with 273.
Bring next digit (7) of the dividend behind the 273 and repeat the process: 2737 / 448

Advancing to step 6:
448 goes into 2737 6 times with a remainder of 49.
Use 6 as the next digit of our solution. 
Result so far: 2036.0
Subtract 2688 from 2737 to get 49.
Fetch the next digit (2) from the dividend, attach it to 49 and continue: 492 / 448

Going ahead to step 7:
The number 448 fits into 492 1 times, leaving a remainder of 44.
Put 1 as the next digit of the answer. 
Result so far: 20361.0
The remainder is 44 after subtracting 448 from 492.
Grab the next digit (2) from the dividend, add it to 44, then carry on: 442 / 448

On to step 8:
When dividing 442 by 448, we get 0 with a remainder of 442.
Write down 0 as next digit of the result. 
Result so far: 203610.0
If we subtract 0 from 442, we get 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Moving on to step 9:
If we divide 4420 by 448, we get 9 and a remainder of 388.
The number 9 becomes the next digit in our result. 
Result so far: 203610.9
Deduct 4032 from 4420 and we're left with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Step 10:
The number 448 fits into 3880 8 times, leaving a remainder of 296.
Put 8 as the next digit of the answer. 
Result so far: 203610.98
If we subtract 3584 from 3880, we get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 11:
448 can be fit into 2960 6 times, resulting in a remainder of 272.
The number 6 becomes the next digit in our result. 
Result so far: 203610.986
If we subtract 2688 from 2960, we get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Step 12:
448 goes into 2720 6 times with a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 203610.9866
If we subtract 2688 from 2720, we 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.

The final result is 203610.9866 with a remainder of 0.00032.