46421565 ÷ 1 
We're looking to find how many times 1 goes into 46421565.

On to step 1:
When dividing 4 by 1, we get 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 4 away from 4, we end up with 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 1

Advancing to step 2:
6 divided by 1 is 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 46.0
If we subtract 6 from 6, we get 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 1

Going ahead to step 3:
1 goes into 4 4 times with a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 464.0
Subtracting 4 from 4 leaves us with 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 1

On to step 4:
1 goes into 2 2 times with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 4642.0
If we take 2 away from 2, we end up with 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 1

Let's proceed to step 5:
When dividing 1 by 1, we get 1 with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 46421.0
If we subtract 1 from 1, we get 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 1

Going ahead to step 6:
If we divide 5 by 1, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 464215.0
If we subtract 5 from 5, we get 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 1

Advancing to step 7:
The number 1 fits into 6 6 times, leaving a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 4642156.0
Subtract 6 from 6 to get 0.
Fetch the next digit (5) from the dividend, attach it to 0 and continue: 5 / 1

Moving on to step 8:
1 goes into 5 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 46421565.0
The remainder is 0 after subtracting 5 from 5.
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:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 46421565.0
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.

On to step 10:
1 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 46421565.0
If we subtract 0 from 0, we 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.

In conclusion, the division gives 46421565.0 with a balance of 0.0.