51716546 ÷ 448 
Let's see how many times 448 fits into 51716546.

Let's proceed to step 1:
448 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 448

Advancing to step 2:
448 can be fit into 51 0 times, resulting in a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Append the next digit (7) from the dividend to 51 and continue with: 517 / 448

Step 3:
When dividing 517 by 448, we get 1 with a remainder of 69.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 69 after subtracting 448 from 517.
Fetch the next digit (1) from the dividend, attach it to 69 and continue: 691 / 448

Going ahead to step 4:
448 can be fit into 691 1 times, resulting in a remainder of 243.
The next digit of our result is 1. 
Result so far: 11.0
Deduct 448 from 691 and we're left with 243.
Fetch the next digit (6) from the dividend, attach it to 243 and continue: 2436 / 448

Advancing to step 5:
2436 divided by 448 is 5 with a remainder of 196.
Use 5 as the next digit of our solution. 
Result so far: 115.0
Subtracting 2240 from 2436 leaves us with 196.
Take the next digit (5) from the dividend and append it to 196, then repeat: 1965 / 448

Going ahead to step 6:
The number 448 fits into 1965 4 times, leaving a remainder of 173.
Put 4 as the next digit of the answer. 
Result so far: 1154.0
Subtracting 1792 from 1965 leaves us with 173.
Grab the next digit (4) from the dividend, add it to 173, then carry on: 1734 / 448

Step 7:
If we divide 1734 by 448, we get 3 and a remainder of 390.
Record the quotient 3 as the next digit in the result. 
Result so far: 11543.0
If we subtract 1344 from 1734, we get 390.
Fetch the next digit (6) from the dividend, attach it to 390 and continue: 3906 / 448

Moving on to step 8:
The number 448 fits into 3906 8 times, leaving a remainder of 322.
Record the quotient 8 as the next digit in the result. 
Result so far: 115438.0
Subtracting 3584 from 3906 leaves us with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Going ahead to step 9:
3220 divided by 448 is 7 with a remainder of 84.
Record the quotient 7 as the next digit in the result. 
Result so far: 115438.7
Subtracting 3136 from 3220 leaves us 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.

On to step 10:
If we divide 840 by 448, we get 1 and a remainder of 392.
Use 1 as the next digit of our solution. 
Result so far: 115438.71
Deduct 448 from 840 and we're left with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Advancing to step 11:
When dividing 3920 by 448, we get 8 with a remainder of 336.
Record the quotient 8 as the next digit in the result. 
Result so far: 115438.718
If we subtract 3584 from 3920, we get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Step 12:
448 can be fit into 3360 7 times, resulting in a remainder of 224.
Write down 7 as next digit of the result. 
Result so far: 115438.7187
The remainder is 224 after subtracting 3136 from 3360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Let's proceed to step 13:
If we divide 2240 by 448, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 115438.71875
Deduct 2240 from 2240 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 14:
448 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 115438.71875
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 15:
When dividing 0 by 448, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 115438.71875
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 115438.71875 with a remainder of 0.0.