Let's divide 31421620 by 45
Let's see how many times 45 fits into 31421620.

On to step 1:
If we divide 3 by 45, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 45

Advancing to step 2:
45 can be fit into 31 0 times, resulting in a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Bring next digit (4) of the dividend behind the 31 and repeat the process: 314 / 45

Let's proceed to step 3:
45 goes into 314 6 times with a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 270 away from 314, we end up with 44.
Grab the next digit (2) from the dividend, add it to 44, then carry on: 442 / 45

Moving on to step 4:
442 divided by 45 is 9 with a remainder of 37.
Use 9 as the next digit of our solution. 
Result so far: 69.0
If we take 405 away from 442, we end up with 37.
Take the next digit (1) from the dividend and append it to 37, then repeat: 371 / 45

Let's proceed to step 5:
When dividing 371 by 45, we get 8 with a remainder of 11.
Put 8 as the next digit of the answer. 
Result so far: 698.0
If we subtract 360 from 371, we get 11.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 45

Let's proceed to step 6:
45 goes into 116 2 times with a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 6982.0
Subtracting 90 from 116 leaves us with 26.
Grab the next digit (2) from the dividend, add it to 26, then carry on: 262 / 45

Step 7:
If we divide 262 by 45, we get 5 and a remainder of 37.
Use 5 as the next digit of our solution. 
Result so far: 69825.0
Deduct 225 from 262 and we're left with 37.
Bring next digit (0) of the dividend behind the 37 and repeat the process: 370 / 45

Let's proceed to step 8:
370 divided by 45 is 8 with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 698258.0
If we subtract 360 from 370, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
The number 45 fits into 100 2 times, leaving a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 698258.2
The remainder is 10 after subtracting 90 from 100.
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 10:
45 goes into 100 2 times with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 698258.22
If we take 90 away from 100, we end up 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.

Our division results in 698258.22 with a remaining 0.01.