51438679 ÷ 449 
We want to figure out the number of times 51438679 can be divided by 449.

On to step 1:
449 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 449

On to step 2:
If we divide 51 by 449, we get 0 and a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Include the next digit (4) from the dividend after 51, then repeat: 514 / 449

Moving on to step 3:
449 can be fit into 514 1 times, resulting in a remainder of 65.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 449 from 514 and we're left with 65.
Append the next digit (3) from the dividend to 65 and continue with: 653 / 449

Step 4:
653 divided by 449 is 1 with a remainder of 204.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 449 away from 653, we end up with 204.
Take the next digit (8) from the dividend and append it to 204, then repeat: 2048 / 449

Step 5:
The number 449 fits into 2048 4 times, leaving a remainder of 252.
The number 4 becomes the next digit in our result. 
Result so far: 114.0
Deduct 1796 from 2048 and we're left with 252.
Grab the next digit (6) from the dividend, add it to 252, then carry on: 2526 / 449

Advancing to step 6:
449 can be fit into 2526 5 times, resulting in a remainder of 281.
Write down 5 as next digit of the result. 
Result so far: 1145.0
Subtract 2245 from 2526 to get 281.
Append the next digit (7) from the dividend to 281 and continue with: 2817 / 449

Step 7:
449 can be fit into 2817 6 times, resulting in a remainder of 123.
Use 6 as the next digit of our solution. 
Result so far: 11456.0
Subtracting 2694 from 2817 leaves us with 123.
Take the next digit (9) from the dividend and append it to 123, then repeat: 1239 / 449

On to step 8:
The number 449 fits into 1239 2 times, leaving a remainder of 341.
Record the quotient 2 as the next digit in the result. 
Result so far: 114562.0
Subtracting 898 from 1239 leaves us with 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

On to step 9:
The number 449 fits into 3410 7 times, leaving a remainder of 267.
Write down 7 as next digit of the result. 
Result so far: 114562.7
Deduct 3143 from 3410 and we're left with 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Going ahead to step 10:
449 goes into 2670 5 times with a remainder of 425.
Write down 5 as next digit of the result. 
Result so far: 114562.75
If we take 2245 away from 2670, we end up with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Step 11:
If we divide 4250 by 449, we get 9 and a remainder of 209.
Use 9 as the next digit of our solution. 
Result so far: 114562.759
If we subtract 4041 from 4250, we get 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Let's proceed to step 12:
2090 divided by 449 is 4 with a remainder of 294.
The next digit of our result is 4. 
Result so far: 114562.7594
If we subtract 1796 from 2090, we get 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Moving on to step 13:
449 can be fit into 2940 6 times, resulting in a remainder of 246.
Write down 6 as next digit of the result. 
Result so far: 114562.75946
If we take 2694 away from 2940, we end up with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Let's proceed to step 14:
2460 divided by 449 is 5 with a remainder of 215.
Put 5 as the next digit of the answer. 
Result so far: 114562.759465
The remainder is 215 after subtracting 2245 from 2460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Going ahead to step 15:
The number 449 fits into 2150 4 times, leaving a remainder of 354.
The next digit of our result is 4. 
Result so far: 114562.7594654
Subtracting 1796 from 2150 leaves us with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Let's proceed to step 16:
449 can be fit into 3540 7 times, resulting in a remainder of 397.
Record the quotient 7 as the next digit in the result. 
Result so far: 114562.75946547
If we subtract 3143 from 3540, we get 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

In conclusion, the division gives 114562.75946547 with a balance of 3.97e-07.