83964264 ÷ 449 
We want to figure out the number of times 83964264 can be divided by 449.

Moving on to step 1:
If we divide 8 by 449, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 449

Advancing to step 2:
If we divide 83 by 449, we get 0 and a remainder of 83.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Append the next digit (9) from the dividend to 83 and continue with: 839 / 449

Step 3:
449 can be fit into 839 1 times, resulting in a remainder of 390.
The next digit of our result is 1. 
Result so far: 1.0
If we take 449 away from 839, we end up with 390.
Take the next digit (6) from the dividend and append it to 390, then repeat: 3906 / 449

Advancing to step 4:
When dividing 3906 by 449, we get 8 with a remainder of 314.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
If we subtract 3592 from 3906, we get 314.
Grab the next digit (4) from the dividend, add it to 314, then carry on: 3144 / 449

Advancing to step 5:
449 goes into 3144 7 times with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 187.0
If we subtract 3143 from 3144, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 449

Moving on to step 6:
12 divided by 449 is 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 1870.0
If we subtract 0 from 12, we get 12.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 449

Advancing to step 7:
When dividing 126 by 449, we get 0 with a remainder of 126.
The next digit of our result is 0. 
Result so far: 18700.0
Subtract 0 from 126 to get 126.
Bring next digit (4) of the dividend behind the 126 and repeat the process: 1264 / 449

Step 8:
1264 divided by 449 is 2 with a remainder of 366.
Put 2 as the next digit of the answer. 
Result so far: 187002.0
Deduct 898 from 1264 and we're left with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Let's proceed to step 9:
449 goes into 3660 8 times with a remainder of 68.
Use 8 as the next digit of our solution. 
Result so far: 187002.8
Subtract 3592 from 3660 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 10:
680 divided by 449 is 1 with a remainder of 231.
Record the quotient 1 as the next digit in the result. 
Result so far: 187002.81
Subtracting 449 from 680 leaves us with 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Going ahead to step 11:
449 goes into 2310 5 times with a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 187002.815
If we subtract 2245 from 2310, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 12:
When dividing 650 by 449, we get 1 with a remainder of 201.
Write down 1 as next digit of the result. 
Result so far: 187002.8151
The remainder is 201 after subtracting 449 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Going ahead to step 13:
2010 divided by 449 is 4 with a remainder of 214.
Put 4 as the next digit of the answer. 
Result so far: 187002.81514
Subtract 1796 from 2010 to get 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Step 14:
449 goes into 2140 4 times with a remainder of 344.
Write down 4 as next digit of the result. 
Result so far: 187002.815144
Subtracting 1796 from 2140 leaves us with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

The final outcome is 187002.815144, with a leftover of 3.44e-05.