643197 divided by 26 
We want to divide 643197 by 26.

Advancing to step 1:
The number 26 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 26

Moving on to step 2:
The number 26 fits into 64 2 times, leaving a remainder of 12.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 52 from 64 leaves us with 12.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 26

Advancing to step 3:
123 divided by 26 is 4 with a remainder of 19.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
If we subtract 104 from 123, we get 19.
Fetch the next digit (1) from the dividend, attach it to 19 and continue: 191 / 26

Advancing to step 4:
The number 26 fits into 191 7 times, leaving a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 247.0
Subtracting 182 from 191 leaves us with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 26

Going ahead to step 5:
The number 26 fits into 99 3 times, leaving a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 2473.0
Subtract 78 from 99 to get 21.
Take the next digit (7) from the dividend and append it to 21, then repeat: 217 / 26

Moving on to step 6:
The number 26 fits into 217 8 times, leaving a remainder of 9.
Put 8 as the next digit of the answer. 
Result so far: 24738.0
Subtracting 208 from 217 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
When dividing 90 by 26, we get 3 with a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 24738.3
Subtract 78 from 90 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
When dividing 120 by 26, we get 4 with a remainder of 16.
The next digit of our result is 4. 
Result so far: 24738.34
The remainder is 16 after subtracting 104 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 9:
The number 26 fits into 160 6 times, leaving a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 24738.346
If we take 156 away from 160, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 10:
26 goes into 40 1 times with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 24738.3461
Subtracting 26 from 40 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 11:
If we divide 140 by 26, we get 5 and a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 24738.34615
Deduct 130 from 140 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 12:
The number 26 fits into 100 3 times, leaving a remainder of 22.
Record the quotient 3 as the next digit in the result. 
Result so far: 24738.346153
If we subtract 78 from 100, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 13:
220 divided by 26 is 8 with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 24738.3461538
The remainder is 12 after subtracting 208 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 14:
26 goes into 120 4 times with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 24738.34615384
Deduct 104 from 120 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 24738.34615384 and a remainder of 1.6e-08.