26133933 ÷ 643 
We want to figure out the number of times 26133933 can be divided by 643.

On to step 1:
643 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 643

Moving on to step 2:
26 divided by 643 is 0 with a remainder of 26.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 26, we end up with 26.
Include the next digit (1) from the dividend after 26, then repeat: 261 / 643

Advancing to step 3:
643 can be fit into 261 0 times, resulting in a remainder of 261.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 261, we get 261.
Grab the next digit (3) from the dividend, add it to 261, then carry on: 2613 / 643

On to step 4:
2613 divided by 643 is 4 with a remainder of 41.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 2572 from 2613 leaves us with 41.
Append the next digit (3) from the dividend to 41 and continue with: 413 / 643

Moving on to step 5:
When dividing 413 by 643, we get 0 with a remainder of 413.
Put 0 as the next digit of the answer. 
Result so far: 40.0
If we subtract 0 from 413, we get 413.
Append the next digit (9) from the dividend to 413 and continue with: 4139 / 643

Advancing to step 6:
When dividing 4139 by 643, we get 6 with a remainder of 281.
The number 6 becomes the next digit in our result. 
Result so far: 406.0
Deduct 3858 from 4139 and we're left with 281.
Append the next digit (3) from the dividend to 281 and continue with: 2813 / 643

Step 7:
When dividing 2813 by 643, we get 4 with a remainder of 241.
Record the quotient 4 as the next digit in the result. 
Result so far: 4064.0
Deduct 2572 from 2813 and we're left with 241.
Append the next digit (3) from the dividend to 241 and continue with: 2413 / 643

Going ahead to step 8:
643 can be fit into 2413 3 times, resulting in a remainder of 484.
Record the quotient 3 as the next digit in the result. 
Result so far: 40643.0
Deduct 1929 from 2413 and we're left with 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Advancing to step 9:
643 goes into 4840 7 times with a remainder of 339.
Record the quotient 7 as the next digit in the result. 
Result so far: 40643.7
Deduct 4501 from 4840 and we're left with 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Advancing to step 10:
When dividing 3390 by 643, we get 5 with a remainder of 175.
Record the quotient 5 as the next digit in the result. 
Result so far: 40643.75
The remainder is 175 after subtracting 3215 from 3390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Moving on to step 11:
643 can be fit into 1750 2 times, resulting in a remainder of 464.
The next digit of our result is 2. 
Result so far: 40643.752
The remainder is 464 after subtracting 1286 from 1750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Let's proceed to step 12:
When dividing 4640 by 643, we get 7 with a remainder of 139.
Use 7 as the next digit of our solution. 
Result so far: 40643.7527
If we subtract 4501 from 4640, we get 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Let's proceed to step 13:
The number 643 fits into 1390 2 times, leaving a remainder of 104.
Record the quotient 2 as the next digit in the result. 
Result so far: 40643.75272
The remainder is 104 after subtracting 1286 from 1390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Step 14:
1040 divided by 643 is 1 with a remainder of 397.
Record the quotient 1 as the next digit in the result. 
Result so far: 40643.752721
Subtracting 643 from 1040 leaves us with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Step 15:
643 can be fit into 3970 6 times, resulting in a remainder of 112.
The number 6 becomes the next digit in our result. 
Result so far: 40643.7527216
If we take 3858 away from 3970, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Let's proceed to step 16:
The number 643 fits into 1120 1 times, leaving a remainder of 477.
Record the quotient 1 as the next digit in the result. 
Result so far: 40643.75272161
The remainder is 477 after subtracting 643 from 1120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

After the division, we end up with 40643.75272161 and a remainder of 4.77e-07.