We look at the division of 21715975 by 946 
Let's see how many times 946 fits into 21715975.

Step 1:
The number 946 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 946

Advancing to step 2:
946 goes into 21 0 times with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (7) from the dividend and append it to 21, then repeat: 217 / 946

Going ahead to step 3:
When dividing 217 by 946, we get 0 with a remainder of 217.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 217 and we're left with 217.
Take the next digit (1) from the dividend and append it to 217, then repeat: 2171 / 946

Moving on to step 4:
2171 divided by 946 is 2 with a remainder of 279.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 1892 away from 2171, we end up with 279.
Include the next digit (5) from the dividend after 279, then repeat: 2795 / 946

Let's proceed to step 5:
If we divide 2795 by 946, we get 2 and a remainder of 903.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Deduct 1892 from 2795 and we're left with 903.
Take the next digit (9) from the dividend and append it to 903, then repeat: 9039 / 946

Going ahead to step 6:
If we divide 9039 by 946, we get 9 and a remainder of 525.
Put 9 as the next digit of the answer. 
Result so far: 229.0
If we take 8514 away from 9039, we end up with 525.
Include the next digit (7) from the dividend after 525, then repeat: 5257 / 946

On to step 7:
When dividing 5257 by 946, we get 5 with a remainder of 527.
Use 5 as the next digit of our solution. 
Result so far: 2295.0
Subtract 4730 from 5257 to get 527.
Take the next digit (5) from the dividend and append it to 527, then repeat: 5275 / 946

Moving on to step 8:
If we divide 5275 by 946, we get 5 and a remainder of 545.
Record the quotient 5 as the next digit in the result. 
Result so far: 22955.0
Subtracting 4730 from 5275 leaves us with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

Step 9:
If we divide 5450 by 946, we get 5 and a remainder of 720.
The next digit of our result is 5. 
Result so far: 22955.5
If we subtract 4730 from 5450, we get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Going ahead to step 10:
The number 946 fits into 7200 7 times, leaving a remainder of 578.
Record the quotient 7 as the next digit in the result. 
Result so far: 22955.57
If we take 6622 away from 7200, we end up with 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Moving on to step 11:
946 goes into 5780 6 times with a remainder of 104.
The next digit of our result is 6. 
Result so far: 22955.576
The remainder is 104 after subtracting 5676 from 5780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

On to step 12:
946 can be fit into 1040 1 times, resulting in a remainder of 94.
Write down 1 as next digit of the result. 
Result so far: 22955.5761
If we take 946 away from 1040, we end up with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Moving on to step 13:
If we divide 940 by 946, we get 0 and a remainder of 940.
The next digit of our result is 0. 
Result so far: 22955.5761
Subtracting 0 from 940 leaves us with 940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9400, and continue the process.

Moving on to step 14:
If we divide 9400 by 946, we get 9 and a remainder of 886.
Write down 9 as next digit of the result. 
Result so far: 22955.576109
The remainder is 886 after subtracting 8514 from 9400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8860, and continue the process.

Let's proceed to step 15:
If we divide 8860 by 946, we get 9 and a remainder of 346.
The number 9 becomes the next digit in our result. 
Result so far: 22955.5761099
If we take 8514 away from 8860, we end up with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

The final result is 22955.5761099 with a remainder of 3.46e-06.