Let's divide 51978081 by 213
We're looking to find how many times 213 goes into 51978081.

Step 1:
5 divided by 213 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 213

Advancing to step 2:
51 divided by 213 is 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Fetch the next digit (9) from the dividend, attach it to 51 and continue: 519 / 213

Going ahead to step 3:
The number 213 fits into 519 2 times, leaving a remainder of 93.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 426 from 519, we get 93.
Include the next digit (7) from the dividend after 93, then repeat: 937 / 213

On to step 4:
If we divide 937 by 213, we get 4 and a remainder of 85.
Put 4 as the next digit of the answer. 
Result so far: 24.0
The remainder is 85 after subtracting 852 from 937.
Grab the next digit (8) from the dividend, add it to 85, then carry on: 858 / 213

Going ahead to step 5:
213 can be fit into 858 4 times, resulting in a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 244.0
If we subtract 852 from 858, we get 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 213

Advancing to step 6:
213 can be fit into 60 0 times, resulting in a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 2440.0
The remainder is 60 after subtracting 0 from 60.
Append the next digit (8) from the dividend to 60 and continue with: 608 / 213

Going ahead to step 7:
213 goes into 608 2 times with a remainder of 182.
Put 2 as the next digit of the answer. 
Result so far: 24402.0
If we take 426 away from 608, we end up with 182.
Include the next digit (1) from the dividend after 182, then repeat: 1821 / 213

Moving on to step 8:
1821 divided by 213 is 8 with a remainder of 117.
The next digit of our result is 8. 
Result so far: 244028.0
The remainder is 117 after subtracting 1704 from 1821.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

On to step 9:
1170 divided by 213 is 5 with a remainder of 105.
Write down 5 as next digit of the result. 
Result so far: 244028.5
The remainder is 105 after subtracting 1065 from 1170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

On to step 10:
If we divide 1050 by 213, we get 4 and a remainder of 198.
Use 4 as the next digit of our solution. 
Result so far: 244028.54
Subtract 852 from 1050 to get 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Step 11:
When dividing 1980 by 213, we get 9 with a remainder of 63.
Write down 9 as next digit of the result. 
Result so far: 244028.549
Deduct 1917 from 1980 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 12:
When dividing 630 by 213, we get 2 with a remainder of 204.
Write down 2 as next digit of the result. 
Result so far: 244028.5492
If we take 426 away from 630, we end up with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

On to step 13:
The number 213 fits into 2040 9 times, leaving a remainder of 123.
Write down 9 as next digit of the result. 
Result so far: 244028.54929
If we subtract 1917 from 2040, we get 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 14:
When dividing 1230 by 213, we get 5 with a remainder of 165.
Use 5 as the next digit of our solution. 
Result so far: 244028.549295
If we take 1065 away from 1230, we end up with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Moving on to step 15:
213 goes into 1650 7 times with a remainder of 159.
Use 7 as the next digit of our solution. 
Result so far: 244028.5492957
Deduct 1491 from 1650 and we're left with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Let's proceed to step 16:
If we divide 1590 by 213, we get 7 and a remainder of 99.
Record the quotient 7 as the next digit in the result. 
Result so far: 244028.54929577
Subtracting 1491 from 1590 leaves us with 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

The final outcome is 244028.54929577, with a leftover of 9.9e-08.