56800321 ÷ 210 
We want to figure out the number of times 56800321 can be divided by 210.

Moving on to step 1:
210 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 210

Going ahead to step 2:
210 goes into 56 0 times with a remainder of 56.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 56, we get 56.
Grab the next digit (8) from the dividend, add it to 56, then carry on: 568 / 210

Going ahead to step 3:
210 can be fit into 568 2 times, resulting in a remainder of 148.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 148 after subtracting 420 from 568.
Fetch the next digit (0) from the dividend, attach it to 148 and continue: 1480 / 210

Advancing to step 4:
The number 210 fits into 1480 7 times, leaving a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 27.0
The remainder is 10 after subtracting 1470 from 1480.
Take the next digit (0) from the dividend and append it to 10, then repeat: 100 / 210

On to step 5:
The number 210 fits into 100 0 times, leaving a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 270.0
Subtracting 0 from 100 leaves us with 100.
Grab the next digit (3) from the dividend, add it to 100, then carry on: 1003 / 210

Moving on to step 6:
210 goes into 1003 4 times with a remainder of 163.
Record the quotient 4 as the next digit in the result. 
Result so far: 2704.0
The remainder is 163 after subtracting 840 from 1003.
Grab the next digit (2) from the dividend, add it to 163, then carry on: 1632 / 210

Let's proceed to step 7:
210 goes into 1632 7 times with a remainder of 162.
Record the quotient 7 as the next digit in the result. 
Result so far: 27047.0
If we subtract 1470 from 1632, we get 162.
Fetch the next digit (1) from the dividend, attach it to 162 and continue: 1621 / 210

Let's proceed to step 8:
1621 divided by 210 is 7 with a remainder of 151.
Record the quotient 7 as the next digit in the result. 
Result so far: 270477.0
Subtracting 1470 from 1621 leaves us with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Moving on to step 9:
210 goes into 1510 7 times with a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 270477.7
Deduct 1470 from 1510 and we're left with 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 10:
210 can be fit into 400 1 times, resulting in a remainder of 190.
Record the quotient 1 as the next digit in the result. 
Result so far: 270477.71
Deduct 210 from 400 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 11:
1900 divided by 210 is 9 with a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 270477.719
Deduct 1890 from 1900 and we're left 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.

Going ahead to step 12:
The number 210 fits into 100 0 times, leaving a remainder of 100.
The next digit of our result is 0. 
Result so far: 270477.719
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 13:
1000 divided by 210 is 4 with a remainder of 160.
Put 4 as the next digit of the answer. 
Result so far: 270477.71904
Deduct 840 from 1000 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 14:
210 can be fit into 1600 7 times, resulting in a remainder of 130.
Record the quotient 7 as the next digit in the result. 
Result so far: 270477.719047
If we subtract 1470 from 1600, we get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 15:
1300 divided by 210 is 6 with a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 270477.7190476
Subtracting 1260 from 1300 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 16:
210 can be fit into 400 1 times, resulting in a remainder of 190.
The next digit of our result is 1. 
Result so far: 270477.71904761
Deduct 210 from 400 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

The final outcome is 270477.71904761, with a leftover of 1.9e-07.