We look at the division of 25056566 by 138 
Let's see how many times 138 fits into 25056566.

Step 1:
If we divide 2 by 138, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 138

On to step 2:
The number 138 fits into 25 0 times, leaving a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Take the next digit (0) from the dividend and append it to 25, then repeat: 250 / 138

Moving on to step 3:
The number 138 fits into 250 1 times, leaving a remainder of 112.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 138 away from 250, we end up with 112.
Grab the next digit (5) from the dividend, add it to 112, then carry on: 1125 / 138

Going ahead to step 4:
When dividing 1125 by 138, we get 8 with a remainder of 21.
The next digit of our result is 8. 
Result so far: 18.0
Subtract 1104 from 1125 to get 21.
Bring next digit (6) of the dividend behind the 21 and repeat the process: 216 / 138

Moving on to step 5:
The number 138 fits into 216 1 times, leaving a remainder of 78.
The number 1 becomes the next digit in our result. 
Result so far: 181.0
Deduct 138 from 216 and we're left with 78.
Bring next digit (5) of the dividend behind the 78 and repeat the process: 785 / 138

On to step 6:
138 can be fit into 785 5 times, resulting in a remainder of 95.
Use 5 as the next digit of our solution. 
Result so far: 1815.0
If we take 690 away from 785, we end up with 95.
Fetch the next digit (6) from the dividend, attach it to 95 and continue: 956 / 138

On to step 7:
138 goes into 956 6 times with a remainder of 128.
Record the quotient 6 as the next digit in the result. 
Result so far: 18156.0
Subtracting 828 from 956 leaves us with 128.
Fetch the next digit (6) from the dividend, attach it to 128 and continue: 1286 / 138

Let's proceed to step 8:
If we divide 1286 by 138, we get 9 and a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 181569.0
Deduct 1242 from 1286 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 9:
If we divide 440 by 138, we get 3 and a remainder of 26.
The next digit of our result is 3. 
Result so far: 181569.3
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.

Advancing to step 10:
When dividing 260 by 138, we get 1 with a remainder of 122.
Write down 1 as next digit of the result. 
Result so far: 181569.31
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.

Moving on to step 11:
138 goes into 1220 8 times with a remainder of 116.
The number 8 becomes the next digit in our result. 
Result so far: 181569.318
If we subtract 1104 from 1220, 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.

Moving on to step 12:
When dividing 1160 by 138, we get 8 with a remainder of 56.
Use 8 as the next digit of our solution. 
Result so far: 181569.3188
If we take 1104 away from 1160, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

After the division, we end up with 181569.3188 and a remainder of 0.00056.