We're dividing 63400454 by 260 
Let's see how many times 260 fits into 63400454.

Advancing to step 1:
260 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 260

Moving on to step 2:
The number 260 fits into 63 0 times, leaving a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Fetch the next digit (4) from the dividend, attach it to 63 and continue: 634 / 260

On to step 3:
If we divide 634 by 260, we get 2 and a remainder of 114.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 114 after subtracting 520 from 634.
Include the next digit (0) from the dividend after 114, then repeat: 1140 / 260

Advancing to step 4:
If we divide 1140 by 260, we get 4 and a remainder of 100.
The next digit of our result is 4. 
Result so far: 24.0
Deduct 1040 from 1140 and we're left with 100.
Bring next digit (0) of the dividend behind the 100 and repeat the process: 1000 / 260

Step 5:
When dividing 1000 by 260, we get 3 with a remainder of 220.
Put 3 as the next digit of the answer. 
Result so far: 243.0
If we take 780 away from 1000, we end up with 220.
Grab the next digit (4) from the dividend, add it to 220, then carry on: 2204 / 260

Advancing to step 6:
The number 260 fits into 2204 8 times, leaving a remainder of 124.
Put 8 as the next digit of the answer. 
Result so far: 2438.0
If we take 2080 away from 2204, we end up with 124.
Bring next digit (5) of the dividend behind the 124 and repeat the process: 1245 / 260

Going ahead to step 7:
When dividing 1245 by 260, we get 4 with a remainder of 205.
Put 4 as the next digit of the answer. 
Result so far: 24384.0
The remainder is 205 after subtracting 1040 from 1245.
Append the next digit (4) from the dividend to 205 and continue with: 2054 / 260

Step 8:
When dividing 2054 by 260, we get 7 with a remainder of 234.
Record the quotient 7 as the next digit in the result. 
Result so far: 243847.0
If we subtract 1820 from 2054, we get 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Moving on to step 9:
When dividing 2340 by 260, we get 9 with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 243847.9
If we take 2340 away from 2340, we end up 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.

Step 10:
0 divided by 260 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 243847.9
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.

On to step 11:
260 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 243847.9
Deduct 0 from 0 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.

The quotient of the division is 243847.9, and the remainder is 0.0.