21385625 ÷ 745 
Our goal is to divide 21385625 by 745.

Step 1:
When dividing 2 by 745, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 745

Let's proceed to step 2:
745 goes into 21 0 times with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Grab the next digit (3) from the dividend, add it to 21, then carry on: 213 / 745

On to step 3:
745 goes into 213 0 times with a remainder of 213.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 213, we get 213.
Grab the next digit (8) from the dividend, add it to 213, then carry on: 2138 / 745

Step 4:
745 can be fit into 2138 2 times, resulting in a remainder of 648.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 1490 from 2138 leaves us with 648.
Grab the next digit (5) from the dividend, add it to 648, then carry on: 6485 / 745

Let's proceed to step 5:
If we divide 6485 by 745, we get 8 and a remainder of 525.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
If we take 5960 away from 6485, we end up with 525.
Take the next digit (6) from the dividend and append it to 525, then repeat: 5256 / 745

On to step 6:
The number 745 fits into 5256 7 times, leaving a remainder of 41.
Use 7 as the next digit of our solution. 
Result so far: 287.0
Subtract 5215 from 5256 to get 41.
Take the next digit (2) from the dividend and append it to 41, then repeat: 412 / 745

Going ahead to step 7:
When dividing 412 by 745, we get 0 with a remainder of 412.
Record the quotient 0 as the next digit in the result. 
Result so far: 2870.0
Subtracting 0 from 412 leaves us with 412.
Append the next digit (5) from the dividend to 412 and continue with: 4125 / 745

Let's proceed to step 8:
If we divide 4125 by 745, we get 5 and a remainder of 400.
Record the quotient 5 as the next digit in the result. 
Result so far: 28705.0
Subtracting 3725 from 4125 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 9:
If we divide 4000 by 745, we get 5 and a remainder of 275.
Write down 5 as next digit of the result. 
Result so far: 28705.5
Subtract 3725 from 4000 to get 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

On to step 10:
If we divide 2750 by 745, we get 3 and a remainder of 515.
Use 3 as the next digit of our solution. 
Result so far: 28705.53
Subtract 2235 from 2750 to get 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Moving on to step 11:
745 can be fit into 5150 6 times, resulting in a remainder of 680.
The number 6 becomes the next digit in our result. 
Result so far: 28705.536
If we subtract 4470 from 5150, we get 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Step 12:
745 can be fit into 6800 9 times, resulting in a remainder of 95.
Write down 9 as next digit of the result. 
Result so far: 28705.5369
If we subtract 6705 from 6800, we get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Let's proceed to step 13:
If we divide 950 by 745, we get 1 and a remainder of 205.
Write down 1 as next digit of the result. 
Result so far: 28705.53691
Subtracting 745 from 950 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Moving on to step 14:
The number 745 fits into 2050 2 times, leaving a remainder of 560.
The number 2 becomes the next digit in our result. 
Result so far: 28705.536912
If we subtract 1490 from 2050, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 15:
745 can be fit into 5600 7 times, resulting in a remainder of 385.
Record the quotient 7 as the next digit in the result. 
Result so far: 28705.5369127
The remainder is 385 after subtracting 5215 from 5600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Step 16:
3850 divided by 745 is 5 with a remainder of 125.
The next digit of our result is 5. 
Result so far: 28705.53691275
If we subtract 3725 from 3850, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

The quotient of the division is 28705.53691275, and the remainder is 1.25e-07.