63458234 ÷ 138 
Our goal is to divide 63458234 by 138.

Step 1:
138 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 138

Let's proceed to step 2:
138 goes into 63 0 times with a remainder of 63.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 63 after subtracting 0 from 63.
Fetch the next digit (4) from the dividend, attach it to 63 and continue: 634 / 138

On to step 3:
If we divide 634 by 138, we get 4 and a remainder of 82.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 82 after subtracting 552 from 634.
Fetch the next digit (5) from the dividend, attach it to 82 and continue: 825 / 138

Let's proceed to step 4:
If we divide 825 by 138, we get 5 and a remainder of 135.
Write down 5 as next digit of the result. 
Result so far: 45.0
Subtract 690 from 825 to get 135.
Include the next digit (8) from the dividend after 135, then repeat: 1358 / 138

Going ahead to step 5:
138 goes into 1358 9 times with a remainder of 116.
The number 9 becomes the next digit in our result. 
Result so far: 459.0
If we take 1242 away from 1358, we end up with 116.
Bring next digit (2) of the dividend behind the 116 and repeat the process: 1162 / 138

Advancing to step 6:
The number 138 fits into 1162 8 times, leaving a remainder of 58.
The next digit of our result is 8. 
Result so far: 4598.0
If we subtract 1104 from 1162, we get 58.
Bring next digit (3) of the dividend behind the 58 and repeat the process: 583 / 138

Step 7:
138 goes into 583 4 times with a remainder of 31.
Write down 4 as next digit of the result. 
Result so far: 45984.0
If we subtract 552 from 583, we get 31.
Bring next digit (4) of the dividend behind the 31 and repeat the process: 314 / 138

Step 8:
138 goes into 314 2 times with a remainder of 38.
Write down 2 as next digit of the result. 
Result so far: 459842.0
If we take 276 away from 314, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 9:
If we divide 380 by 138, we get 2 and a remainder of 104.
Put 2 as the next digit of the answer. 
Result so far: 459842.2
Subtracting 276 from 380 leaves us 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.

Moving on to step 10:
138 can be fit into 1040 7 times, resulting in a remainder of 74.
Put 7 as the next digit of the answer. 
Result so far: 459842.27
Subtract 966 from 1040 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 11:
The number 138 fits into 740 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 459842.275
Subtract 690 from 740 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 12:
If we divide 500 by 138, we get 3 and a remainder of 86.
Use 3 as the next digit of our solution. 
Result so far: 459842.2753
The remainder is 86 after subtracting 414 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Step 13:
860 divided by 138 is 6 with a remainder of 32.
The next digit of our result is 6. 
Result so far: 459842.27536
If we subtract 828 from 860, we 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.

Step 14:
320 divided by 138 is 2 with a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 459842.275362
The remainder is 44 after subtracting 276 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 15:
The number 138 fits into 440 3 times, leaving a remainder of 26.
Use 3 as the next digit of our solution. 
Result so far: 459842.2753623
Subtracting 414 from 440 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 16:
260 divided by 138 is 1 with a remainder of 122.
The number 1 becomes the next digit in our result. 
Result so far: 459842.27536231
If we take 138 away from 260, we end up with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

After the division, we end up with 459842.27536231 and a remainder of 1.22e-07.