51513622 ÷ 449 
We want to figure out the number of times 51513622 can be divided by 449.

Advancing to step 1:
449 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 449

Going ahead to step 2:
The number 449 fits into 51 0 times, leaving a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Bring next digit (5) of the dividend behind the 51 and repeat the process: 515 / 449

Step 3:
449 can be fit into 515 1 times, resulting in a remainder of 66.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 66 after subtracting 449 from 515.
Include the next digit (1) from the dividend after 66, then repeat: 661 / 449

Advancing to step 4:
449 can be fit into 661 1 times, resulting in a remainder of 212.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we subtract 449 from 661, we get 212.
Grab the next digit (3) from the dividend, add it to 212, then carry on: 2123 / 449

Let's proceed to step 5:
449 can be fit into 2123 4 times, resulting in a remainder of 327.
The next digit of our result is 4. 
Result so far: 114.0
The remainder is 327 after subtracting 1796 from 2123.
Fetch the next digit (6) from the dividend, attach it to 327 and continue: 3276 / 449

Going ahead to step 6:
If we divide 3276 by 449, we get 7 and a remainder of 133.
The next digit of our result is 7. 
Result so far: 1147.0
If we take 3143 away from 3276, we end up with 133.
Grab the next digit (2) from the dividend, add it to 133, then carry on: 1332 / 449

Step 7:
When dividing 1332 by 449, we get 2 with a remainder of 434.
Record the quotient 2 as the next digit in the result. 
Result so far: 11472.0
If we subtract 898 from 1332, we get 434.
Append the next digit (2) from the dividend to 434 and continue with: 4342 / 449

Moving on to step 8:
449 can be fit into 4342 9 times, resulting in a remainder of 301.
Put 9 as the next digit of the answer. 
Result so far: 114729.0
Deduct 4041 from 4342 and we're left with 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

On to step 9:
449 goes into 3010 6 times with a remainder of 316.
Write down 6 as next digit of the result. 
Result so far: 114729.6
Subtract 2694 from 3010 to get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Going ahead to step 10:
If we divide 3160 by 449, we get 7 and a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 114729.67
Subtract 3143 from 3160 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 11:
449 goes into 170 0 times with a remainder of 170.
The number 0 becomes the next digit in our result. 
Result so far: 114729.67
The remainder is 170 after subtracting 0 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 12:
1700 divided by 449 is 3 with a remainder of 353.
The next digit of our result is 3. 
Result so far: 114729.6703
Subtracting 1347 from 1700 leaves us with 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Let's proceed to step 13:
If we divide 3530 by 449, we get 7 and a remainder of 387.
The next digit of our result is 7. 
Result so far: 114729.67037
The remainder is 387 after subtracting 3143 from 3530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

Step 14:
When dividing 3870 by 449, we get 8 with a remainder of 278.
Use 8 as the next digit of our solution. 
Result so far: 114729.670378
Subtract 3592 from 3870 to get 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

On to step 15:
2780 divided by 449 is 6 with a remainder of 86.
Use 6 as the next digit of our solution. 
Result so far: 114729.6703786
Subtracting 2694 from 2780 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Step 16:
449 can be fit into 860 1 times, resulting in a remainder of 411.
Put 1 as the next digit of the answer. 
Result so far: 114729.67037861
If we take 449 away from 860, we end up with 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

The final outcome is 114729.67037861, with a leftover of 4.11e-07.