We divide 15939139 by 646
Our goal is to divide 15939139 by 646.

Step 1:
646 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 646

Step 2:
If we divide 15 by 646, we get 0 and a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 646

Step 3:
The number 646 fits into 159 0 times, leaving a remainder of 159.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 159, we get 159.
Include the next digit (3) from the dividend after 159, then repeat: 1593 / 646

On to step 4:
1593 divided by 646 is 2 with a remainder of 301.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1292 from 1593 and we're left with 301.
Take the next digit (9) from the dividend and append it to 301, then repeat: 3019 / 646

Let's proceed to step 5:
When dividing 3019 by 646, we get 4 with a remainder of 435.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Subtract 2584 from 3019 to get 435.
Bring next digit (1) of the dividend behind the 435 and repeat the process: 4351 / 646

Let's proceed to step 6:
646 can be fit into 4351 6 times, resulting in a remainder of 475.
The next digit of our result is 6. 
Result so far: 246.0
If we take 3876 away from 4351, we end up with 475.
Include the next digit (3) from the dividend after 475, then repeat: 4753 / 646

Step 7:
If we divide 4753 by 646, we get 7 and a remainder of 231.
Write down 7 as next digit of the result. 
Result so far: 2467.0
If we subtract 4522 from 4753, we get 231.
Bring next digit (9) of the dividend behind the 231 and repeat the process: 2319 / 646

Moving on to step 8:
2319 divided by 646 is 3 with a remainder of 381.
The number 3 becomes the next digit in our result. 
Result so far: 24673.0
The remainder is 381 after subtracting 1938 from 2319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Advancing to step 9:
If we divide 3810 by 646, we get 5 and a remainder of 580.
The next digit of our result is 5. 
Result so far: 24673.5
The remainder is 580 after subtracting 3230 from 3810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Let's proceed to step 10:
5800 divided by 646 is 8 with a remainder of 632.
Record the quotient 8 as the next digit in the result. 
Result so far: 24673.58
Subtracting 5168 from 5800 leaves us with 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Let's proceed to step 11:
646 can be fit into 6320 9 times, resulting in a remainder of 506.
Record the quotient 9 as the next digit in the result. 
Result so far: 24673.589
Subtract 5814 from 6320 to get 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Step 12:
When dividing 5060 by 646, we get 7 with a remainder of 538.
Write down 7 as next digit of the result. 
Result so far: 24673.5897
If we subtract 4522 from 5060, we get 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Going ahead to step 13:
When dividing 5380 by 646, we get 8 with a remainder of 212.
Put 8 as the next digit of the answer. 
Result so far: 24673.58978
Deduct 5168 from 5380 and we're left with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Advancing to step 14:
The number 646 fits into 2120 3 times, leaving a remainder of 182.
Write down 3 as next digit of the result. 
Result so far: 24673.589783
Deduct 1938 from 2120 and we're left with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

On to step 15:
646 goes into 1820 2 times with a remainder of 528.
Use 2 as the next digit of our solution. 
Result so far: 24673.5897832
The remainder is 528 after subtracting 1292 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Step 16:
If we divide 5280 by 646, we get 8 and a remainder of 112.
Put 8 as the next digit of the answer. 
Result so far: 24673.58978328
If we subtract 5168 from 5280, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

The quotient of the division is 24673.58978328, and the remainder is 1.12e-07.