We're dividing 52505261 by 408 
Let's see how many times 408 fits into 52505261.

Going ahead to step 1:
If we divide 5 by 408, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 408

Advancing to step 2:
The number 408 fits into 52 0 times, leaving a remainder of 52.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 52, we end up with 52.
Take the next digit (5) from the dividend and append it to 52, then repeat: 525 / 408

Moving on to step 3:
If we divide 525 by 408, we get 1 and a remainder of 117.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 117 after subtracting 408 from 525.
Bring next digit (0) of the dividend behind the 117 and repeat the process: 1170 / 408

On to step 4:
If we divide 1170 by 408, we get 2 and a remainder of 354.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 354 after subtracting 816 from 1170.
Bring next digit (5) of the dividend behind the 354 and repeat the process: 3545 / 408

Advancing to step 5:
When dividing 3545 by 408, we get 8 with a remainder of 281.
Use 8 as the next digit of our solution. 
Result so far: 128.0
Subtract 3264 from 3545 to get 281.
Append the next digit (2) from the dividend to 281 and continue with: 2812 / 408

Moving on to step 6:
408 can be fit into 2812 6 times, resulting in a remainder of 364.
The next digit of our result is 6. 
Result so far: 1286.0
If we take 2448 away from 2812, we end up with 364.
Bring next digit (6) of the dividend behind the 364 and repeat the process: 3646 / 408

Going ahead to step 7:
3646 divided by 408 is 8 with a remainder of 382.
Put 8 as the next digit of the answer. 
Result so far: 12868.0
If we subtract 3264 from 3646, we get 382.
Bring next digit (1) of the dividend behind the 382 and repeat the process: 3821 / 408

Going ahead to step 8:
When dividing 3821 by 408, we get 9 with a remainder of 149.
Write down 9 as next digit of the result. 
Result so far: 128689.0
Subtract 3672 from 3821 to get 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Step 9:
If we divide 1490 by 408, we get 3 and a remainder of 266.
Write down 3 as next digit of the result. 
Result so far: 128689.3
If we subtract 1224 from 1490, we get 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Advancing to step 10:
The number 408 fits into 2660 6 times, leaving a remainder of 212.
Record the quotient 6 as the next digit in the result. 
Result so far: 128689.36
If we take 2448 away from 2660, we end up with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Going ahead to step 11:
2120 divided by 408 is 5 with a remainder of 80.
Write down 5 as next digit of the result. 
Result so far: 128689.365
The remainder is 80 after subtracting 2040 from 2120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 12:
The number 408 fits into 800 1 times, leaving a remainder of 392.
The number 1 becomes the next digit in our result. 
Result so far: 128689.3651
Subtracting 408 from 800 leaves us 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.

On to step 13:
If we divide 3920 by 408, we get 9 and a remainder of 248.
The next digit of our result is 9. 
Result so far: 128689.36519
Subtracting 3672 from 3920 leaves us with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Going ahead to step 14:
If we divide 2480 by 408, we get 6 and a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 128689.365196
Subtract 2448 from 2480 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 15:
If we divide 320 by 408, we get 0 and a remainder of 320.
Use 0 as the next digit of our solution. 
Result so far: 128689.365196
Subtract 0 from 320 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 16:
408 can be fit into 3200 7 times, resulting in a remainder of 344.
Record the quotient 7 as the next digit in the result. 
Result so far: 128689.36519607
Subtracting 2856 from 3200 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.

After the division, we end up with 128689.36519607 and a remainder of 3.44e-07.