We look at the division of 46354363 by 21 
We want to figure out the number of times 46354363 can be divided by 21.

Step 1:
If we divide 4 by 21, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 21

Advancing to step 2:
When dividing 46 by 21, we get 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 42 from 46, we get 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 21

On to step 3:
21 goes into 43 2 times with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 22.0
If we subtract 42 from 43, we get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 21

Let's proceed to step 4:
The number 21 fits into 15 0 times, leaving a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 220.0
Deduct 0 from 15 and we're left with 15.
Grab the next digit (4) from the dividend, add it to 15, then carry on: 154 / 21

Step 5:
When dividing 154 by 21, we get 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 2207.0
Subtract 147 from 154 to get 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 21

Let's proceed to step 6:
If we divide 73 by 21, we get 3 and a remainder of 10.
The next digit of our result is 3. 
Result so far: 22073.0
The remainder is 10 after subtracting 63 from 73.
Grab the next digit (6) from the dividend, add it to 10, then carry on: 106 / 21

Going ahead to step 7:
21 can be fit into 106 5 times, resulting in a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 220735.0
The remainder is 1 after subtracting 105 from 106.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 21

Step 8:
If we divide 13 by 21, we get 0 and a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 2207350.0
If we subtract 0 from 13, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 9:
The number 21 fits into 130 6 times, leaving a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 2207350.6
If we take 126 away from 130, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
40 divided by 21 is 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 2207350.61
If we take 21 away from 40, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 11:
If we divide 190 by 21, we get 9 and a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 2207350.619
Subtract 189 from 190 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 12:
21 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 2207350.619
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 13:
21 can be fit into 100 4 times, resulting in a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 2207350.61904
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 14:
21 can be fit into 160 7 times, resulting in a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 2207350.619047
Deduct 147 from 160 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 15:
130 divided by 21 is 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 2207350.6190476
Subtract 126 from 130 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 16:
When dividing 40 by 21, we get 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 2207350.61904761
Deduct 21 from 40 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final outcome is 2207350.61904761, with a leftover of 1.9e-08.