We divide 43238815 by 139
Our goal is to divide 43238815 by 139.

On to step 1:
If we divide 4 by 139, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 139

Going ahead to step 2:
When dividing 43 by 139, we get 0 with a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Bring next digit (2) of the dividend behind the 43 and repeat the process: 432 / 139

Step 3:
139 goes into 432 3 times with a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 417 from 432 and we're left with 15.
Grab the next digit (3) from the dividend, add it to 15, then carry on: 153 / 139

On to step 4:
139 can be fit into 153 1 times, resulting in a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
Deduct 139 from 153 and we're left with 14.
Bring next digit (8) of the dividend behind the 14 and repeat the process: 148 / 139

On to step 5:
148 divided by 139 is 1 with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 311.0
Subtracting 139 from 148 leaves us with 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 139

Going ahead to step 6:
139 goes into 98 0 times with a remainder of 98.
The number 0 becomes the next digit in our result. 
Result so far: 3110.0
The remainder is 98 after subtracting 0 from 98.
Fetch the next digit (1) from the dividend, attach it to 98 and continue: 981 / 139

On to step 7:
139 can be fit into 981 7 times, resulting in a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 31107.0
Subtract 973 from 981 to get 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 139

Advancing to step 8:
The number 139 fits into 85 0 times, leaving a remainder of 85.
The number 0 becomes the next digit in our result. 
Result so far: 311070.0
Subtracting 0 from 85 leaves us with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Let's proceed to step 9:
139 goes into 850 6 times with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 311070.6
Subtract 834 from 850 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 10:
If we divide 160 by 139, we get 1 and a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 311070.61
Deduct 139 from 160 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 11:
The number 139 fits into 210 1 times, leaving a remainder of 71.
Use 1 as the next digit of our solution. 
Result so far: 311070.611
If we take 139 away from 210, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

The final result is 311070.611 with a remainder of 0.0071.