We're dividing 721226 by 45 
Let's see how many times 45 fits into 721226.

Let's proceed to step 1:
45 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 45

Advancing to step 2:
The number 45 fits into 72 1 times, leaving a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 45 away from 72, we end up with 27.
Include the next digit (1) from the dividend after 27, then repeat: 271 / 45

Let's proceed to step 3:
45 goes into 271 6 times with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 16.0
The remainder is 1 after subtracting 270 from 271.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 45

Moving on to step 4:
12 divided by 45 is 0 with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 160.0
Subtract 0 from 12 to get 12.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 45

Moving on to step 5:
If we divide 122 by 45, we get 2 and a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 1602.0
Subtract 90 from 122 to get 32.
Fetch the next digit (6) from the dividend, attach it to 32 and continue: 326 / 45

Advancing to step 6:
If we divide 326 by 45, we get 7 and a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 16027.0
The remainder is 11 after subtracting 315 from 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
If we divide 110 by 45, we get 2 and a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 16027.2
The remainder is 20 after subtracting 90 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 8:
45 can be fit into 200 4 times, resulting in a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 16027.24
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
45 goes into 200 4 times with a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 16027.244
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 16027.244 with a remainder of 0.002.