15992492 divided by 138 
We want to figure out the number of times 15992492 can be divided by 138.

Step 1:
138 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 138

Step 2:
The number 138 fits into 15 0 times, leaving a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 138

On to step 3:
138 can be fit into 159 1 times, resulting in a remainder of 21.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 21 after subtracting 138 from 159.
Include the next digit (9) from the dividend after 21, then repeat: 219 / 138

Let's proceed to step 4:
219 divided by 138 is 1 with a remainder of 81.
Put 1 as the next digit of the answer. 
Result so far: 11.0
The remainder is 81 after subtracting 138 from 219.
Append the next digit (2) from the dividend to 81 and continue with: 812 / 138

Advancing to step 5:
812 divided by 138 is 5 with a remainder of 122.
The number 5 becomes the next digit in our result. 
Result so far: 115.0
Subtract 690 from 812 to get 122.
Bring next digit (4) of the dividend behind the 122 and repeat the process: 1224 / 138

Going ahead to step 6:
138 goes into 1224 8 times with a remainder of 120.
Use 8 as the next digit of our solution. 
Result so far: 1158.0
Deduct 1104 from 1224 and we're left with 120.
Bring next digit (9) of the dividend behind the 120 and repeat the process: 1209 / 138

Moving on to step 7:
138 can be fit into 1209 8 times, resulting in a remainder of 105.
Use 8 as the next digit of our solution. 
Result so far: 11588.0
The remainder is 105 after subtracting 1104 from 1209.
Take the next digit (2) from the dividend and append it to 105, then repeat: 1052 / 138

Step 8:
138 can be fit into 1052 7 times, resulting in a remainder of 86.
Write down 7 as next digit of the result. 
Result so far: 115887.0
If we take 966 away from 1052, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Let's proceed to step 9:
The number 138 fits into 860 6 times, leaving a remainder of 32.
Write down 6 as next digit of the result. 
Result so far: 115887.6
Subtract 828 from 860 to 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 10:
138 can be fit into 320 2 times, resulting in a remainder of 44.
Write down 2 as next digit of the result. 
Result so far: 115887.62
Subtracting 276 from 320 leaves us 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 11:
138 can be fit into 440 3 times, resulting in a remainder of 26.
Record the quotient 3 as the next digit in the result. 
Result so far: 115887.623
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.

Step 12:
138 can be fit into 260 1 times, resulting in a remainder of 122.
The number 1 becomes the next digit in our result. 
Result so far: 115887.6231
If we subtract 138 from 260, we get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

On to step 13:
138 can be fit into 1220 8 times, resulting in a remainder of 116.
Write down 8 as next digit of the result. 
Result so far: 115887.62318
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.

On to step 14:
1160 divided by 138 is 8 with a remainder of 56.
The number 8 becomes the next digit in our result. 
Result so far: 115887.623188
Subtracting 1104 from 1160 leaves us 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.

The final result is 115887.623188 with a remainder of 5.6e-06.