21694135 ÷ 1 
We want to divide 21694135 by 1.

Advancing to step 1:
The number 1 fits into 2 2 times, leaving a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 2 from 2 and we're left with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

Going ahead to step 2:
If we divide 1 by 1, we get 1 and a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 21.0
Subtract 1 from 1 to get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 1

Going ahead to step 3:
6 divided by 1 is 6 with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 216.0
If we subtract 6 from 6, we get 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 1

Let's proceed to step 4:
1 can be fit into 9 9 times, resulting in a remainder of 0.
The next digit of our result is 9. 
Result so far: 2169.0
The remainder is 0 after subtracting 9 from 9.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 1

Step 5:
When dividing 4 by 1, we get 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 21694.0
The remainder is 0 after subtracting 4 from 4.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 1

Going ahead to step 6:
The number 1 fits into 1 1 times, leaving a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 216941.0
If we subtract 1 from 1, we get 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 1

On to step 7:
If we divide 3 by 1, we get 3 and a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 2169413.0
Deduct 3 from 3 and we're left with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 1

Advancing to step 8:
1 can be fit into 5 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 21694135.0
Subtract 5 from 5 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.

On to step 9:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 21694135.0
Subtract 0 from 0 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.

Moving on to step 10:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 21694135.0
If we take 0 away from 0, we end up with 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 21694135.0, with a leftover of 0.0.