80918406 divided by 138 
Our goal is to divide 80918406 by 138.

Advancing to step 1:
8 divided by 138 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 138

On to step 2:
80 divided by 138 is 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Include the next digit (9) from the dividend after 80, then repeat: 809 / 138

Moving on to step 3:
809 divided by 138 is 5 with a remainder of 119.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 690 from 809 leaves us with 119.
Append the next digit (1) from the dividend to 119 and continue with: 1191 / 138

Let's proceed to step 4:
If we divide 1191 by 138, we get 8 and a remainder of 87.
The next digit of our result is 8. 
Result so far: 58.0
Deduct 1104 from 1191 and we're left with 87.
Fetch the next digit (8) from the dividend, attach it to 87 and continue: 878 / 138

On to step 5:
The number 138 fits into 878 6 times, leaving a remainder of 50.
Put 6 as the next digit of the answer. 
Result so far: 586.0
Subtract 828 from 878 to get 50.
Fetch the next digit (4) from the dividend, attach it to 50 and continue: 504 / 138

Moving on to step 6:
When dividing 504 by 138, we get 3 with a remainder of 90.
Write down 3 as next digit of the result. 
Result so far: 5863.0
Deduct 414 from 504 and we're left with 90.
Include the next digit (0) from the dividend after 90, then repeat: 900 / 138

Step 7:
138 goes into 900 6 times with a remainder of 72.
Use 6 as the next digit of our solution. 
Result so far: 58636.0
If we take 828 away from 900, we end up with 72.
Fetch the next digit (6) from the dividend, attach it to 72 and continue: 726 / 138

Advancing to step 8:
If we divide 726 by 138, we get 5 and a remainder of 36.
The number 5 becomes the next digit in our result. 
Result so far: 586365.0
The remainder is 36 after subtracting 690 from 726.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 9:
138 goes into 360 2 times with a remainder of 84.
Put 2 as the next digit of the answer. 
Result so far: 586365.2
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.

Advancing to step 10:
The number 138 fits into 840 6 times, leaving a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 586365.26
If we subtract 828 from 840, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 11:
The number 138 fits into 120 0 times, leaving a remainder of 120.
The next digit of our result is 0. 
Result so far: 586365.26
If we subtract 0 from 120, we get 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 12:
138 goes into 1200 8 times with a remainder of 96.
Put 8 as the next digit of the answer. 
Result so far: 586365.2608
Deduct 1104 from 1200 and we're left 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.

Step 13:
138 can be fit into 960 6 times, resulting in a remainder of 132.
Use 6 as the next digit of our solution. 
Result so far: 586365.26086
Deduct 828 from 960 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Let's proceed to step 14:
When dividing 1320 by 138, we get 9 with a remainder of 78.
Use 9 as the next digit of our solution. 
Result so far: 586365.260869
If we take 1242 away from 1320, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 15:
138 can be fit into 780 5 times, resulting in a remainder of 90.
The next digit of our result is 5. 
Result so far: 586365.2608695
Subtract 690 from 780 to get 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 16:
When dividing 900 by 138, we get 6 with a remainder of 72.
The number 6 becomes the next digit in our result. 
Result so far: 586365.26086956
Deduct 828 from 900 and we're left 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.

After the division, we end up with 586365.26086956 and a remainder of 7.2e-08.