We look at the division of 8260226 by 643 
Let's see how many times 643 fits into 8260226.

Let's proceed to step 1:
8 divided by 643 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (2) from the dividend, add it to 8, then carry on: 82 / 643

Let's proceed to step 2:
643 can be fit into 82 0 times, resulting in a remainder of 82.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 82 after subtracting 0 from 82.
Append the next digit (6) from the dividend to 82 and continue with: 826 / 643

Step 3:
If we divide 826 by 643, we get 1 and a remainder of 183.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 183 after subtracting 643 from 826.
Include the next digit (0) from the dividend after 183, then repeat: 1830 / 643

On to step 4:
1830 divided by 643 is 2 with a remainder of 544.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 1286 from 1830 to get 544.
Bring next digit (2) of the dividend behind the 544 and repeat the process: 5442 / 643

Step 5:
When dividing 5442 by 643, we get 8 with a remainder of 298.
Put 8 as the next digit of the answer. 
Result so far: 128.0
Deduct 5144 from 5442 and we're left with 298.
Fetch the next digit (2) from the dividend, attach it to 298 and continue: 2982 / 643

Going ahead to step 6:
643 can be fit into 2982 4 times, resulting in a remainder of 410.
The number 4 becomes the next digit in our result. 
Result so far: 1284.0
The remainder is 410 after subtracting 2572 from 2982.
Include the next digit (6) from the dividend after 410, then repeat: 4106 / 643

Advancing to step 7:
The number 643 fits into 4106 6 times, leaving a remainder of 248.
Put 6 as the next digit of the answer. 
Result so far: 12846.0
Subtract 3858 from 4106 to get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Let's proceed to step 8:
643 goes into 2480 3 times with a remainder of 551.
Put 3 as the next digit of the answer. 
Result so far: 12846.3
Deduct 1929 from 2480 and we're left with 551.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5510, and continue the process.

Step 9:
5510 divided by 643 is 8 with a remainder of 366.
Record the quotient 8 as the next digit in the result. 
Result so far: 12846.38
The remainder is 366 after subtracting 5144 from 5510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Let's proceed to step 10:
When dividing 3660 by 643, we get 5 with a remainder of 445.
Record the quotient 5 as the next digit in the result. 
Result so far: 12846.385
The remainder is 445 after subtracting 3215 from 3660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

Advancing to step 11:
643 goes into 4450 6 times with a remainder of 592.
The number 6 becomes the next digit in our result. 
Result so far: 12846.3856
The remainder is 592 after subtracting 3858 from 4450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Let's proceed to step 12:
5920 divided by 643 is 9 with a remainder of 133.
The number 9 becomes the next digit in our result. 
Result so far: 12846.38569
If we take 5787 away from 5920, we end up with 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

Let's proceed to step 13:
If we divide 1330 by 643, we get 2 and a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 12846.385692
If we take 1286 away from 1330, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 14:
440 divided by 643 is 0 with a remainder of 440.
Put 0 as the next digit of the answer. 
Result so far: 12846.385692
The remainder is 440 after subtracting 0 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 15:
643 goes into 4400 6 times with a remainder of 542.
The next digit of our result is 6. 
Result so far: 12846.38569206
If we take 3858 away from 4400, we end up with 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Our division results in 12846.38569206 with a remaining 5.42e-07.