We're dividing 21023496 by 357 
We want to figure out the number of times 21023496 can be divided by 357.

Going ahead to step 1:
If we divide 2 by 357, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 357

Let's proceed to step 2:
21 divided by 357 is 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Grab the next digit (0) from the dividend, add it to 21, then carry on: 210 / 357

Advancing to step 3:
If we divide 210 by 357, we get 0 and a remainder of 210.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 210 leaves us with 210.
Grab the next digit (2) from the dividend, add it to 210, then carry on: 2102 / 357

Advancing to step 4:
357 goes into 2102 5 times with a remainder of 317.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 1785 from 2102 leaves us with 317.
Fetch the next digit (3) from the dividend, attach it to 317 and continue: 3173 / 357

Going ahead to step 5:
3173 divided by 357 is 8 with a remainder of 317.
The next digit of our result is 8. 
Result so far: 58.0
Subtract 2856 from 3173 to get 317.
Fetch the next digit (4) from the dividend, attach it to 317 and continue: 3174 / 357

Going ahead to step 6:
The number 357 fits into 3174 8 times, leaving a remainder of 318.
The number 8 becomes the next digit in our result. 
Result so far: 588.0
If we take 2856 away from 3174, we end up with 318.
Take the next digit (9) from the dividend and append it to 318, then repeat: 3189 / 357

Moving on to step 7:
When dividing 3189 by 357, we get 8 with a remainder of 333.
The number 8 becomes the next digit in our result. 
Result so far: 5888.0
If we take 2856 away from 3189, we end up with 333.
Include the next digit (6) from the dividend after 333, then repeat: 3336 / 357

Going ahead to step 8:
357 can be fit into 3336 9 times, resulting in a remainder of 123.
Write down 9 as next digit of the result. 
Result so far: 58889.0
The remainder is 123 after subtracting 3213 from 3336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Moving on to step 9:
When dividing 1230 by 357, we get 3 with a remainder of 159.
Use 3 as the next digit of our solution. 
Result so far: 58889.3
Subtracting 1071 from 1230 leaves us with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Let's proceed to step 10:
When dividing 1590 by 357, we get 4 with a remainder of 162.
Record the quotient 4 as the next digit in the result. 
Result so far: 58889.34
Subtract 1428 from 1590 to get 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Going ahead to step 11:
The number 357 fits into 1620 4 times, leaving a remainder of 192.
The number 4 becomes the next digit in our result. 
Result so far: 58889.344
If we subtract 1428 from 1620, we get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

The final result is 58889.344 with a remainder of 0.0192.