Let's divide 39488840 by 138
Let's see how many times 138 fits into 39488840.

Going ahead to step 1:
If we divide 3 by 138, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 138

Let's proceed to step 2:
39 divided by 138 is 0 with a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Grab the next digit (4) from the dividend, add it to 39, then carry on: 394 / 138

On to step 3:
138 can be fit into 394 2 times, resulting in a remainder of 118.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 118 after subtracting 276 from 394.
Append the next digit (8) from the dividend to 118 and continue with: 1188 / 138

Going ahead to step 4:
When dividing 1188 by 138, we get 8 with a remainder of 84.
Put 8 as the next digit of the answer. 
Result so far: 28.0
Subtracting 1104 from 1188 leaves us with 84.
Append the next digit (8) from the dividend to 84 and continue with: 848 / 138

On to step 5:
The number 138 fits into 848 6 times, leaving a remainder of 20.
The next digit of our result is 6. 
Result so far: 286.0
If we take 828 away from 848, we end up with 20.
Take the next digit (8) from the dividend and append it to 20, then repeat: 208 / 138

Let's proceed to step 6:
208 divided by 138 is 1 with a remainder of 70.
The number 1 becomes the next digit in our result. 
Result so far: 2861.0
If we subtract 138 from 208, we get 70.
Fetch the next digit (4) from the dividend, attach it to 70 and continue: 704 / 138

Advancing to step 7:
138 can be fit into 704 5 times, resulting in a remainder of 14.
Use 5 as the next digit of our solution. 
Result so far: 28615.0
Subtracting 690 from 704 leaves us with 14.
Include the next digit (0) from the dividend after 14, then repeat: 140 / 138

On to step 8:
138 goes into 140 1 times with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 286151.0
Subtracting 138 from 140 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
20 divided by 138 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 286151.0
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 10:
138 goes into 200 1 times with a remainder of 62.
Record the quotient 1 as the next digit in the result. 
Result so far: 286151.01
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.

On to step 11:
The number 138 fits into 620 4 times, leaving a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 286151.014
Subtract 552 from 620 to get 68.
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 12:
When dividing 680 by 138, we get 4 with a remainder of 128.
Put 4 as the next digit of the answer. 
Result so far: 286151.0144
Deduct 552 from 680 and we're left with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

The final result is 286151.0144 with a remainder of 0.00128.