We look at the division of 15615297 by 138 
We want to figure out the number of times 15615297 can be divided by 138.

Advancing to step 1:
138 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 138

On to step 2:
The number 138 fits into 15 0 times, leaving a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Grab the next digit (6) from the dividend, add it to 15, then carry on: 156 / 138

Moving on to step 3:
156 divided by 138 is 1 with a remainder of 18.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 138 from 156 to get 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 138

Advancing to step 4:
When dividing 181 by 138, we get 1 with a remainder of 43.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Deduct 138 from 181 and we're left with 43.
Bring next digit (5) of the dividend behind the 43 and repeat the process: 435 / 138

Let's proceed to step 5:
138 goes into 435 3 times with a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 113.0
If we subtract 414 from 435, we get 21.
Grab the next digit (2) from the dividend, add it to 21, then carry on: 212 / 138

On to step 6:
The number 138 fits into 212 1 times, leaving a remainder of 74.
Put 1 as the next digit of the answer. 
Result so far: 1131.0
Subtracting 138 from 212 leaves us with 74.
Grab the next digit (9) from the dividend, add it to 74, then carry on: 749 / 138

Let's proceed to step 7:
749 divided by 138 is 5 with a remainder of 59.
Write down 5 as next digit of the result. 
Result so far: 11315.0
The remainder is 59 after subtracting 690 from 749.
Bring next digit (7) of the dividend behind the 59 and repeat the process: 597 / 138

On to step 8:
If we divide 597 by 138, we get 4 and a remainder of 45.
Write down 4 as next digit of the result. 
Result so far: 113154.0
Subtract 552 from 597 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 9:
When dividing 450 by 138, we get 3 with a remainder of 36.
Write down 3 as next digit of the result. 
Result so far: 113154.3
Subtracting 414 from 450 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 10:
When dividing 360 by 138, we get 2 with a remainder of 84.
The number 2 becomes the next digit in our result. 
Result so far: 113154.32
If we take 276 away from 360, we end up with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 11:
If we divide 840 by 138, we get 6 and a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 113154.326
Deduct 828 from 840 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 12:
If we divide 120 by 138, we get 0 and a remainder of 120.
Put 0 as the next digit of the answer. 
Result so far: 113154.326
Deduct 0 from 120 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 13:
If we divide 1200 by 138, we get 8 and a remainder of 96.
The number 8 becomes the next digit in our result. 
Result so far: 113154.32608
If we take 1104 away from 1200, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Advancing to step 14:
If we divide 960 by 138, we get 6 and a remainder of 132.
Use 6 as the next digit of our solution. 
Result so far: 113154.326086
The remainder is 132 after subtracting 828 from 960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Going ahead to step 15:
If we divide 1320 by 138, we get 9 and a remainder of 78.
Use 9 as the next digit of our solution. 
Result so far: 113154.3260869
If we subtract 1242 from 1320, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 16:
The number 138 fits into 780 5 times, leaving a remainder of 90.
Record the quotient 5 as the next digit in the result. 
Result so far: 113154.32608695
The remainder is 90 after subtracting 690 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

The final result is 113154.32608695 with a remainder of 9e-08.