We look at the division of 420645 by 56 
We're looking to find how many times 56 goes into 420645.

Advancing to step 1:
56 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 56

Advancing to step 2:
If we divide 42 by 56, we get 0 and a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Take the next digit (0) from the dividend and append it to 42, then repeat: 420 / 56

Moving on to step 3:
56 goes into 420 7 times with a remainder of 28.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 392 from 420 to get 28.
Fetch the next digit (6) from the dividend, attach it to 28 and continue: 286 / 56

Let's proceed to step 4:
When dividing 286 by 56, we get 5 with a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 75.0
If we take 280 away from 286, we end up with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 56

Moving on to step 5:
If we divide 64 by 56, we get 1 and a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 751.0
The remainder is 8 after subtracting 56 from 64.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 56

On to step 6:
When dividing 85 by 56, we get 1 with a remainder of 29.
The next digit of our result is 1. 
Result so far: 7511.0
If we subtract 56 from 85, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 7:
If we divide 290 by 56, we get 5 and a remainder of 10.
The next digit of our result is 5. 
Result so far: 7511.5
Subtract 280 from 290 to 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.

On to step 8:
When dividing 100 by 56, we get 1 with a remainder of 44.
The number 1 becomes the next digit in our result. 
Result so far: 7511.51
If we subtract 56 from 100, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 9:
If we divide 440 by 56, we get 7 and a remainder of 48.
Put 7 as the next digit of the answer. 
Result so far: 7511.517
The remainder is 48 after subtracting 392 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 10:
56 can be fit into 480 8 times, resulting in a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 7511.5178
Subtracting 448 from 480 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 11:
56 goes into 320 5 times with a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 7511.51785
If we subtract 280 from 320, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
When dividing 400 by 56, we get 7 with a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 7511.517857
Subtracting 392 from 400 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 13:
80 divided by 56 is 1 with a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 7511.5178571
Deduct 56 from 80 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 14:
56 can be fit into 240 4 times, resulting in a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 7511.51785714
Subtract 224 from 240 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 7511.51785714 and a remainder of 1.6e-08.