90117156 ÷ 138 
We want to figure out the number of times 90117156 can be divided by 138.

On to step 1:
138 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 138

Moving on to step 2:
If we divide 90 by 138, we get 0 and a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 90 leaves us with 90.
Grab the next digit (1) from the dividend, add it to 90, then carry on: 901 / 138

On to step 3:
901 divided by 138 is 6 with a remainder of 73.
The next digit of our result is 6. 
Result so far: 6.0
Subtracting 828 from 901 leaves us with 73.
Fetch the next digit (1) from the dividend, attach it to 73 and continue: 731 / 138

Let's proceed to step 4:
If we divide 731 by 138, we get 5 and a remainder of 41.
Record the quotient 5 as the next digit in the result. 
Result so far: 65.0
If we take 690 away from 731, we end up with 41.
Grab the next digit (7) from the dividend, add it to 41, then carry on: 417 / 138

Step 5:
138 can be fit into 417 3 times, resulting in a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 653.0
The remainder is 3 after subtracting 414 from 417.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 138

Moving on to step 6:
31 divided by 138 is 0 with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 6530.0
If we take 0 away from 31, we end up with 31.
Include the next digit (5) from the dividend after 31, then repeat: 315 / 138

Going ahead to step 7:
The number 138 fits into 315 2 times, leaving a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 65302.0
Subtract 276 from 315 to get 39.
Fetch the next digit (6) from the dividend, attach it to 39 and continue: 396 / 138

Let's proceed to step 8:
The number 138 fits into 396 2 times, leaving a remainder of 120.
Put 2 as the next digit of the answer. 
Result so far: 653022.0
If we take 276 away from 396, we end up 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.

On to step 9:
138 can be fit into 1200 8 times, resulting in a remainder of 96.
Record the quotient 8 as the next digit in the result. 
Result so far: 653022.8
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.

Let's proceed to step 10:
When dividing 960 by 138, we get 6 with a remainder of 132.
Put 6 as the next digit of the answer. 
Result so far: 653022.86
Subtract 828 from 960 to get 132.
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 11:
When dividing 1320 by 138, we get 9 with a remainder of 78.
The next digit of our result is 9. 
Result so far: 653022.869
The remainder is 78 after subtracting 1242 from 1320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 12:
780 divided by 138 is 5 with a remainder of 90.
Write down 5 as next digit of the result. 
Result so far: 653022.8695
If we take 690 away from 780, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Going ahead to step 13:
When dividing 900 by 138, we get 6 with a remainder of 72.
Write down 6 as next digit of the result. 
Result so far: 653022.86956
If we take 828 away from 900, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 14:
If we divide 720 by 138, we get 5 and a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 653022.869565
Subtracting 690 from 720 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 15:
When dividing 300 by 138, we get 2 with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 653022.8695652
The remainder is 24 after subtracting 276 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 16:
The number 138 fits into 240 1 times, leaving a remainder of 102.
The number 1 becomes the next digit in our result. 
Result so far: 653022.86956521
Subtract 138 from 240 to get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

In conclusion, the division gives 653022.86956521 with a balance of 1.02e-07.