87003108 divided by 138 
The aim is to understand the frequency of 138 in 87003108.

Step 1:
138 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 138

Going ahead to step 2:
When dividing 87 by 138, we get 0 with a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Grab the next digit (0) from the dividend, add it to 87, then carry on: 870 / 138

On to step 3:
138 can be fit into 870 6 times, resulting in a remainder of 42.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 828 from 870 and we're left with 42.
Append the next digit (0) from the dividend to 42 and continue with: 420 / 138

Going ahead to step 4:
When dividing 420 by 138, we get 3 with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 63.0
If we take 414 away from 420, we end up with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 138

Step 5:
If we divide 63 by 138, we get 0 and a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 630.0
The remainder is 63 after subtracting 0 from 63.
Bring next digit (1) of the dividend behind the 63 and repeat the process: 631 / 138

Step 6:
138 can be fit into 631 4 times, resulting in a remainder of 79.
Use 4 as the next digit of our solution. 
Result so far: 6304.0
Subtracting 552 from 631 leaves us with 79.
Append the next digit (0) from the dividend to 79 and continue with: 790 / 138

Going ahead to step 7:
138 can be fit into 790 5 times, resulting in a remainder of 100.
The next digit of our result is 5. 
Result so far: 63045.0
The remainder is 100 after subtracting 690 from 790.
Fetch the next digit (8) from the dividend, attach it to 100 and continue: 1008 / 138

Advancing to step 8:
The number 138 fits into 1008 7 times, leaving a remainder of 42.
The next digit of our result is 7. 
Result so far: 630457.0
Subtracting 966 from 1008 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 9:
When dividing 420 by 138, we get 3 with a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 630457.3
Subtracting 414 from 420 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
When dividing 60 by 138, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 630457.3
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 11:
138 can be fit into 600 4 times, resulting in a remainder of 48.
Use 4 as the next digit of our solution. 
Result so far: 630457.304
Subtract 552 from 600 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 12:
If we divide 480 by 138, we get 3 and a remainder of 66.
Write down 3 as next digit of the result. 
Result so far: 630457.3043
Subtract 414 from 480 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 13:
660 divided by 138 is 4 with a remainder of 108.
Record the quotient 4 as the next digit in the result. 
Result so far: 630457.30434
Subtracting 552 from 660 leaves us with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Moving on to step 14:
If we divide 1080 by 138, we get 7 and a remainder of 114.
The number 7 becomes the next digit in our result. 
Result so far: 630457.304347
Deduct 966 from 1080 and we're left with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Step 15:
When dividing 1140 by 138, we get 8 with a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 630457.3043478
Subtracting 1104 from 1140 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.

Step 16:
When dividing 360 by 138, we get 2 with a remainder of 84.
Record the quotient 2 as the next digit in the result. 
Result so far: 630457.30434782
The remainder is 84 after subtracting 276 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

After the division, we end up with 630457.30434782 and a remainder of 8.4e-08.