We divide 15216138 by 839
We want to figure out the number of times 15216138 can be divided by 839.

Going ahead to step 1:
839 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 839

Advancing to step 2:
If we divide 15 by 839, we get 0 and a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Bring next digit (2) of the dividend behind the 15 and repeat the process: 152 / 839

Step 3:
839 goes into 152 0 times with a remainder of 152.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 152, we end up with 152.
Grab the next digit (1) from the dividend, add it to 152, then carry on: 1521 / 839

Going ahead to step 4:
When dividing 1521 by 839, we get 1 with a remainder of 682.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 682 after subtracting 839 from 1521.
Fetch the next digit (6) from the dividend, attach it to 682 and continue: 6826 / 839

Moving on to step 5:
839 can be fit into 6826 8 times, resulting in a remainder of 114.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we take 6712 away from 6826, we end up with 114.
Grab the next digit (1) from the dividend, add it to 114, then carry on: 1141 / 839

Going ahead to step 6:
If we divide 1141 by 839, we get 1 and a remainder of 302.
The next digit of our result is 1. 
Result so far: 181.0
The remainder is 302 after subtracting 839 from 1141.
Append the next digit (3) from the dividend to 302 and continue with: 3023 / 839

On to step 7:
If we divide 3023 by 839, we get 3 and a remainder of 506.
Put 3 as the next digit of the answer. 
Result so far: 1813.0
Subtracting 2517 from 3023 leaves us with 506.
Fetch the next digit (8) from the dividend, attach it to 506 and continue: 5068 / 839

Step 8:
When dividing 5068 by 839, we get 6 with a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 18136.0
Subtract 5034 from 5068 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 9:
If we divide 340 by 839, we get 0 and a remainder of 340.
Use 0 as the next digit of our solution. 
Result so far: 18136.0
The remainder is 340 after subtracting 0 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Let's proceed to step 10:
839 goes into 3400 4 times with a remainder of 44.
Record the quotient 4 as the next digit in the result. 
Result so far: 18136.04
The remainder is 44 after subtracting 3356 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 11:
If we divide 440 by 839, we get 0 and a remainder of 440.
Put 0 as the next digit of the answer. 
Result so far: 18136.04
Subtract 0 from 440 to get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Moving on to step 12:
839 can be fit into 4400 5 times, resulting in a remainder of 205.
Write down 5 as next digit of the result. 
Result so far: 18136.0405
If we take 4195 away from 4400, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 13:
839 can be fit into 2050 2 times, resulting in a remainder of 372.
The next digit of our result is 2. 
Result so far: 18136.04052
Subtracting 1678 from 2050 leaves us with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Moving on to step 14:
3720 divided by 839 is 4 with a remainder of 364.
Write down 4 as next digit of the result. 
Result so far: 18136.040524
Deduct 3356 from 3720 and we're left with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Step 15:
When dividing 3640 by 839, we get 4 with a remainder of 284.
Record the quotient 4 as the next digit in the result. 
Result so far: 18136.0405244
Subtract 3356 from 3640 to get 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

The final outcome is 18136.0405244, with a leftover of 2.84e-06.