We look at the division of 43519419 by 138 
We want to figure out the number of times 43519419 can be divided by 138.

Let's proceed to step 1:
138 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 138

Let's proceed to step 2:
138 goes into 43 0 times with a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Fetch the next digit (5) from the dividend, attach it to 43 and continue: 435 / 138

On to step 3:
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: 3.0
Deduct 414 from 435 and we're left with 21.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 138

Step 4:
138 goes into 211 1 times with a remainder of 73.
The next digit of our result is 1. 
Result so far: 31.0
Subtract 138 from 211 to get 73.
Take the next digit (9) from the dividend and append it to 73, then repeat: 739 / 138

Going ahead to step 5:
739 divided by 138 is 5 with a remainder of 49.
Use 5 as the next digit of our solution. 
Result so far: 315.0
Subtracting 690 from 739 leaves us with 49.
Take the next digit (4) from the dividend and append it to 49, then repeat: 494 / 138

Step 6:
138 can be fit into 494 3 times, resulting in a remainder of 80.
Write down 3 as next digit of the result. 
Result so far: 3153.0
Subtracting 414 from 494 leaves us with 80.
Bring next digit (1) of the dividend behind the 80 and repeat the process: 801 / 138

Moving on to step 7:
The number 138 fits into 801 5 times, leaving a remainder of 111.
Use 5 as the next digit of our solution. 
Result so far: 31535.0
Subtract 690 from 801 to get 111.
Fetch the next digit (9) from the dividend, attach it to 111 and continue: 1119 / 138

On to step 8:
When dividing 1119 by 138, we get 8 with a remainder of 15.
Record the quotient 8 as the next digit in the result. 
Result so far: 315358.0
Subtracting 1104 from 1119 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 9:
138 goes into 150 1 times with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 315358.1
The remainder is 12 after subtracting 138 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 10:
120 divided by 138 is 0 with a remainder of 120.
Write down 0 as next digit of the result. 
Result so far: 315358.1
If we take 0 away from 120, 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.

Let's proceed to step 11:
If we divide 1200 by 138, we get 8 and a remainder of 96.
Put 8 as the next digit of the answer. 
Result so far: 315358.108
If we subtract 1104 from 1200, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 12:
The number 138 fits into 960 6 times, leaving a remainder of 132.
The next digit of our result is 6. 
Result so far: 315358.1086
If we take 828 away from 960, we end up 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 13:
1320 divided by 138 is 9 with a remainder of 78.
The next digit of our result is 9. 
Result so far: 315358.10869
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.

Advancing to step 14:
138 goes into 780 5 times with a remainder of 90.
Use 5 as the next digit of our solution. 
Result so far: 315358.108695
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.

Advancing to step 15:
138 goes into 900 6 times with a remainder of 72.
The number 6 becomes the next digit in our result. 
Result so far: 315358.1086956
Subtract 828 from 900 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 16:
720 divided by 138 is 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 315358.10869565
Deduct 690 from 720 and we're left 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.

Our division results in 315358.10869565 with a remaining 3e-08.