We look at the division of 55431400 by 139 
We're looking to find how many times 139 goes into 55431400.

Step 1:
The number 139 fits into 5 0 times, leaving a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 139

Advancing to step 2:
139 goes into 55 0 times with a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Bring next digit (4) of the dividend behind the 55 and repeat the process: 554 / 139

Advancing to step 3:
When dividing 554 by 139, we get 3 with a remainder of 137.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 417 from 554, we get 137.
Fetch the next digit (3) from the dividend, attach it to 137 and continue: 1373 / 139

Let's proceed to step 4:
139 goes into 1373 9 times with a remainder of 122.
Put 9 as the next digit of the answer. 
Result so far: 39.0
If we take 1251 away from 1373, we end up with 122.
Grab the next digit (1) from the dividend, add it to 122, then carry on: 1221 / 139

Step 5:
If we divide 1221 by 139, we get 8 and a remainder of 109.
Write down 8 as next digit of the result. 
Result so far: 398.0
Subtracting 1112 from 1221 leaves us with 109.
Grab the next digit (4) from the dividend, add it to 109, then carry on: 1094 / 139

On to step 6:
When dividing 1094 by 139, we get 7 with a remainder of 121.
The number 7 becomes the next digit in our result. 
Result so far: 3987.0
Subtract 973 from 1094 to get 121.
Take the next digit (0) from the dividend and append it to 121, then repeat: 1210 / 139

Moving on to step 7:
The number 139 fits into 1210 8 times, leaving a remainder of 98.
Put 8 as the next digit of the answer. 
Result so far: 39878.0
Subtract 1112 from 1210 to get 98.
Take the next digit (0) from the dividend and append it to 98, then repeat: 980 / 139

On to step 8:
139 can be fit into 980 7 times, resulting in a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 398787.0
Deduct 973 from 980 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 9:
If we divide 70 by 139, we get 0 and a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 398787.0
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 10:
139 goes into 700 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 398787.05
The remainder is 5 after subtracting 695 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 11:
If we divide 50 by 139, we get 0 and a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 398787.05
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 12:
500 divided by 139 is 3 with a remainder of 83.
Use 3 as the next digit of our solution. 
Result so far: 398787.0503
If we take 417 away from 500, we end up with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

On to step 13:
139 can be fit into 830 5 times, resulting in a remainder of 135.
Use 5 as the next digit of our solution. 
Result so far: 398787.05035
If we subtract 695 from 830, we get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

On to step 14:
The number 139 fits into 1350 9 times, leaving a remainder of 99.
Write down 9 as next digit of the result. 
Result so far: 398787.050359
Subtract 1251 from 1350 to get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Advancing to step 15:
When dividing 990 by 139, we get 7 with a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 398787.0503597
Subtract 973 from 990 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 16:
170 divided by 139 is 1 with a remainder of 31.
The next digit of our result is 1. 
Result so far: 398787.05035971
If we subtract 139 from 170, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

The quotient of the division is 398787.05035971, and the remainder is 3.1e-08.