We divide 83153829 by 646
We want to figure out the number of times 83153829 can be divided by 646.

Step 1:
If we divide 8 by 646, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 646

Let's proceed to step 2:
The number 646 fits into 83 0 times, leaving a remainder of 83.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Take the next digit (1) from the dividend and append it to 83, then repeat: 831 / 646

Moving on to step 3:
831 divided by 646 is 1 with a remainder of 185.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 646 away from 831, we end up with 185.
Include the next digit (5) from the dividend after 185, then repeat: 1855 / 646

Moving on to step 4:
646 can be fit into 1855 2 times, resulting in a remainder of 563.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 1292 from 1855 leaves us with 563.
Fetch the next digit (3) from the dividend, attach it to 563 and continue: 5633 / 646

Advancing to step 5:
646 can be fit into 5633 8 times, resulting in a remainder of 465.
The number 8 becomes the next digit in our result. 
Result so far: 128.0
Subtracting 5168 from 5633 leaves us with 465.
Take the next digit (8) from the dividend and append it to 465, then repeat: 4658 / 646

Moving on to step 6:
4658 divided by 646 is 7 with a remainder of 136.
The number 7 becomes the next digit in our result. 
Result so far: 1287.0
Subtract 4522 from 4658 to get 136.
Take the next digit (2) from the dividend and append it to 136, then repeat: 1362 / 646

Moving on to step 7:
646 can be fit into 1362 2 times, resulting in a remainder of 70.
Use 2 as the next digit of our solution. 
Result so far: 12872.0
The remainder is 70 after subtracting 1292 from 1362.
Append the next digit (9) from the dividend to 70 and continue with: 709 / 646

Step 8:
When dividing 709 by 646, we get 1 with a remainder of 63.
The next digit of our result is 1. 
Result so far: 128721.0
If we take 646 away from 709, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 9:
646 goes into 630 0 times with a remainder of 630.
Record the quotient 0 as the next digit in the result. 
Result so far: 128721.0
If we subtract 0 from 630, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Moving on to step 10:
646 goes into 6300 9 times with a remainder of 486.
Use 9 as the next digit of our solution. 
Result so far: 128721.09
Deduct 5814 from 6300 and we're left with 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Let's proceed to step 11:
When dividing 4860 by 646, we get 7 with a remainder of 338.
Use 7 as the next digit of our solution. 
Result so far: 128721.097
Subtracting 4522 from 4860 leaves us with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

On to step 12:
646 goes into 3380 5 times with a remainder of 150.
The number 5 becomes the next digit in our result. 
Result so far: 128721.0975
Deduct 3230 from 3380 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 13:
If we divide 1500 by 646, we get 2 and a remainder of 208.
Use 2 as the next digit of our solution. 
Result so far: 128721.09752
Deduct 1292 from 1500 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Advancing to step 14:
When dividing 2080 by 646, we get 3 with a remainder of 142.
The number 3 becomes the next digit in our result. 
Result so far: 128721.097523
If we take 1938 away from 2080, we end up with 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Let's proceed to step 15:
1420 divided by 646 is 2 with a remainder of 128.
Record the quotient 2 as the next digit in the result. 
Result so far: 128721.0975232
Deduct 1292 from 1420 and we're left with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Let's proceed to step 16:
When dividing 1280 by 646, we get 1 with a remainder of 634.
Write down 1 as next digit of the result. 
Result so far: 128721.09752321
The remainder is 634 after subtracting 646 from 1280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6340, and continue the process.

Our division results in 128721.09752321 with a remaining 6.34e-07.