55394221 ÷ 392 
Let's see how many times 392 fits into 55394221.

On to step 1:
The number 392 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 392

On to step 2:
When dividing 55 by 392, we get 0 with a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 55 after subtracting 0 from 55.
Grab the next digit (3) from the dividend, add it to 55, then carry on: 553 / 392

Let's proceed to step 3:
553 divided by 392 is 1 with a remainder of 161.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 392 from 553 leaves us with 161.
Grab the next digit (9) from the dividend, add it to 161, then carry on: 1619 / 392

Moving on to step 4:
The number 392 fits into 1619 4 times, leaving a remainder of 51.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Deduct 1568 from 1619 and we're left with 51.
Take the next digit (4) from the dividend and append it to 51, then repeat: 514 / 392

Going ahead to step 5:
392 goes into 514 1 times with a remainder of 122.
The next digit of our result is 1. 
Result so far: 141.0
If we take 392 away from 514, we end up with 122.
Include the next digit (2) from the dividend after 122, then repeat: 1222 / 392

Step 6:
If we divide 1222 by 392, we get 3 and a remainder of 46.
Use 3 as the next digit of our solution. 
Result so far: 1413.0
Subtract 1176 from 1222 to get 46.
Fetch the next digit (2) from the dividend, attach it to 46 and continue: 462 / 392

Going ahead to step 7:
392 goes into 462 1 times with a remainder of 70.
Record the quotient 1 as the next digit in the result. 
Result so far: 14131.0
Subtracting 392 from 462 leaves us with 70.
Bring next digit (1) of the dividend behind the 70 and repeat the process: 701 / 392

On to step 8:
701 divided by 392 is 1 with a remainder of 309.
The next digit of our result is 1. 
Result so far: 141311.0
Deduct 392 from 701 and we're left with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Moving on to step 9:
392 goes into 3090 7 times with a remainder of 346.
Use 7 as the next digit of our solution. 
Result so far: 141311.7
Subtracting 2744 from 3090 leaves us with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Advancing to step 10:
3460 divided by 392 is 8 with a remainder of 324.
Record the quotient 8 as the next digit in the result. 
Result so far: 141311.78
Subtracting 3136 from 3460 leaves us with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Going ahead to step 11:
3240 divided by 392 is 8 with a remainder of 104.
The number 8 becomes the next digit in our result. 
Result so far: 141311.788
Deduct 3136 from 3240 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

The final outcome is 141311.788, with a leftover of 0.0104.