We divide 10390223 by 138
We want to divide 10390223 by 138.

Step 1:
The number 138 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 138

Advancing to step 2:
The number 138 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 10 and we're left with 10.
Grab the next digit (3) from the dividend, add it to 10, then carry on: 103 / 138

On to step 3:
The number 138 fits into 103 0 times, leaving a remainder of 103.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 103, we end up with 103.
Bring next digit (9) of the dividend behind the 103 and repeat the process: 1039 / 138

Moving on to step 4:
The number 138 fits into 1039 7 times, leaving a remainder of 73.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 73 after subtracting 966 from 1039.
Take the next digit (0) from the dividend and append it to 73, then repeat: 730 / 138

Step 5:
When dividing 730 by 138, we get 5 with a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 75.0
Subtract 690 from 730 to get 40.
Append the next digit (2) from the dividend to 40 and continue with: 402 / 138

Advancing to step 6:
138 can be fit into 402 2 times, resulting in a remainder of 126.
Use 2 as the next digit of our solution. 
Result so far: 752.0
Subtract 276 from 402 to get 126.
Include the next digit (2) from the dividend after 126, then repeat: 1262 / 138

On to step 7:
When dividing 1262 by 138, we get 9 with a remainder of 20.
The number 9 becomes the next digit in our result. 
Result so far: 7529.0
If we take 1242 away from 1262, we end up with 20.
Bring next digit (3) of the dividend behind the 20 and repeat the process: 203 / 138

Advancing to step 8:
The number 138 fits into 203 1 times, leaving a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 75291.0
If we subtract 138 from 203, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 9:
If we divide 650 by 138, we get 4 and a remainder of 98.
Write down 4 as next digit of the result. 
Result so far: 75291.4
Subtract 552 from 650 to get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Advancing to step 10:
980 divided by 138 is 7 with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 75291.47
If we subtract 966 from 980, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 11:
138 goes into 140 1 times with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 75291.471
If we subtract 138 from 140, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 12:
138 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 75291.471
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
138 can be fit into 200 1 times, resulting in a remainder of 62.
The next digit of our result is 1. 
Result so far: 75291.47101
Subtract 138 from 200 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 14:
If we divide 620 by 138, we get 4 and a remainder of 68.
Write down 4 as next digit of the result. 
Result so far: 75291.471014
The remainder is 68 after subtracting 552 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 15:
If we divide 680 by 138, we get 4 and a remainder of 128.
Record the quotient 4 as the next digit in the result. 
Result so far: 75291.4710144
The remainder is 128 after subtracting 552 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

After the division, we end up with 75291.4710144 and a remainder of 1.28e-06.