Let's divide 21942931 by 1
We want to figure out the number of times 21942931 can be divided by 1.

Advancing to step 1:
If we divide 2 by 1, we get 2 and a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 2 from 2, we get 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 1

On to step 2:
The number 1 fits into 1 1 times, leaving a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 21.0
Deduct 1 from 1 and we're left with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 1

Advancing to step 3:
The number 1 fits into 9 9 times, leaving a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 219.0
Subtract 9 from 9 to get 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 1

Going ahead to step 4:
1 can be fit into 4 4 times, resulting in a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 2194.0
Deduct 4 from 4 and we're left with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 1

Step 5:
1 goes into 2 2 times with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 21942.0
If we take 2 away from 2, we end up with 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 1

Going ahead to step 6:
If we divide 9 by 1, we get 9 and a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 219429.0
The remainder is 0 after subtracting 9 from 9.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 1

Moving on to step 7:
1 goes into 3 3 times with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 2194293.0
Deduct 3 from 3 and we're left with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

On to step 8:
When dividing 1 by 1, we get 1 with a remainder of 0.
The next digit of our result is 1. 
Result so far: 21942931.0
Subtract 1 from 1 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
If we divide 0 by 1, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 21942931.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
When dividing 0 by 1, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 21942931.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 21942931.0, with a leftover of 0.0.