51948392 ÷ 404 
Our goal is to divide 51948392 by 404.

Moving on to step 1:
5 divided by 404 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 404

On to step 2:
404 goes into 51 0 times with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Fetch the next digit (9) from the dividend, attach it to 51 and continue: 519 / 404

On to step 3:
When dividing 519 by 404, we get 1 with a remainder of 115.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 404 from 519, we get 115.
Include the next digit (4) from the dividend after 115, then repeat: 1154 / 404

Let's proceed to step 4:
The number 404 fits into 1154 2 times, leaving a remainder of 346.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Deduct 808 from 1154 and we're left with 346.
Bring next digit (8) of the dividend behind the 346 and repeat the process: 3468 / 404

Going ahead to step 5:
404 can be fit into 3468 8 times, resulting in a remainder of 236.
The number 8 becomes the next digit in our result. 
Result so far: 128.0
The remainder is 236 after subtracting 3232 from 3468.
Take the next digit (3) from the dividend and append it to 236, then repeat: 2363 / 404

Moving on to step 6:
404 can be fit into 2363 5 times, resulting in a remainder of 343.
The number 5 becomes the next digit in our result. 
Result so far: 1285.0
Subtracting 2020 from 2363 leaves us with 343.
Take the next digit (9) from the dividend and append it to 343, then repeat: 3439 / 404

Let's proceed to step 7:
404 can be fit into 3439 8 times, resulting in a remainder of 207.
Write down 8 as next digit of the result. 
Result so far: 12858.0
If we subtract 3232 from 3439, we get 207.
Fetch the next digit (2) from the dividend, attach it to 207 and continue: 2072 / 404

Going ahead to step 8:
If we divide 2072 by 404, we get 5 and a remainder of 52.
Write down 5 as next digit of the result. 
Result so far: 128585.0
The remainder is 52 after subtracting 2020 from 2072.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 9:
The number 404 fits into 520 1 times, leaving a remainder of 116.
Record the quotient 1 as the next digit in the result. 
Result so far: 128585.1
The remainder is 116 after subtracting 404 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Let's proceed to step 10:
When dividing 1160 by 404, we get 2 with a remainder of 352.
Record the quotient 2 as the next digit in the result. 
Result so far: 128585.12
Subtracting 808 from 1160 leaves us with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Let's proceed to step 11:
404 goes into 3520 8 times with a remainder of 288.
The next digit of our result is 8. 
Result so far: 128585.128
The remainder is 288 after subtracting 3232 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Let's proceed to step 12:
404 goes into 2880 7 times with a remainder of 52.
Write down 7 as next digit of the result. 
Result so far: 128585.1287
Subtract 2828 from 2880 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 13:
When dividing 520 by 404, we get 1 with a remainder of 116.
Write down 1 as next digit of the result. 
Result so far: 128585.12871
If we subtract 404 from 520, we get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Let's proceed to step 14:
1160 divided by 404 is 2 with a remainder of 352.
Use 2 as the next digit of our solution. 
Result so far: 128585.128712
Subtracting 808 from 1160 leaves us with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Going ahead to step 15:
404 goes into 3520 8 times with a remainder of 288.
Put 8 as the next digit of the answer. 
Result so far: 128585.1287128
Subtracting 3232 from 3520 leaves us with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

On to step 16:
If we divide 2880 by 404, we get 7 and a remainder of 52.
The number 7 becomes the next digit in our result. 
Result so far: 128585.12871287
Deduct 2828 from 2880 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 128585.12871287, with a leftover of 5.2e-08.