21688226 divided by 612 
We want to figure out the number of times 21688226 can be divided by 612.

Step 1:
2 divided by 612 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 612

Step 2:
When dividing 21 by 612, we get 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Fetch the next digit (6) from the dividend, attach it to 21 and continue: 216 / 612

Step 3:
216 divided by 612 is 0 with a remainder of 216.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 216, we end up with 216.
Bring next digit (8) of the dividend behind the 216 and repeat the process: 2168 / 612

Moving on to step 4:
612 can be fit into 2168 3 times, resulting in a remainder of 332.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 1836 from 2168 leaves us with 332.
Include the next digit (8) from the dividend after 332, then repeat: 3328 / 612

Let's proceed to step 5:
If we divide 3328 by 612, we get 5 and a remainder of 268.
Write down 5 as next digit of the result. 
Result so far: 35.0
If we subtract 3060 from 3328, we get 268.
Bring next digit (2) of the dividend behind the 268 and repeat the process: 2682 / 612

Let's proceed to step 6:
612 goes into 2682 4 times with a remainder of 234.
The number 4 becomes the next digit in our result. 
Result so far: 354.0
If we take 2448 away from 2682, we end up with 234.
Bring next digit (2) of the dividend behind the 234 and repeat the process: 2342 / 612

Let's proceed to step 7:
When dividing 2342 by 612, we get 3 with a remainder of 506.
Use 3 as the next digit of our solution. 
Result so far: 3543.0
Subtract 1836 from 2342 to get 506.
Include the next digit (6) from the dividend after 506, then repeat: 5066 / 612

Step 8:
The number 612 fits into 5066 8 times, leaving a remainder of 170.
The next digit of our result is 8. 
Result so far: 35438.0
Subtract 4896 from 5066 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Let's proceed to step 9:
When dividing 1700 by 612, we get 2 with a remainder of 476.
Use 2 as the next digit of our solution. 
Result so far: 35438.2
If we take 1224 away from 1700, we end up with 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

On to step 10:
When dividing 4760 by 612, we get 7 with a remainder of 476.
Write down 7 as next digit of the result. 
Result so far: 35438.27
The remainder is 476 after subtracting 4284 from 4760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

On to step 11:
612 goes into 4760 7 times with a remainder of 476.
Write down 7 as next digit of the result. 
Result so far: 35438.277
The remainder is 476 after subtracting 4284 from 4760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

After the division, we end up with 35438.277 and a remainder of 0.0476.