We look at the division of 25806837 by 213 
We want to figure out the number of times 25806837 can be divided by 213.

Advancing to step 1:
213 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 213

Going ahead to step 2:
25 divided by 213 is 0 with a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Append the next digit (8) from the dividend to 25 and continue with: 258 / 213

Let's proceed to step 3:
The number 213 fits into 258 1 times, leaving a remainder of 45.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 213 from 258 leaves us with 45.
Include the next digit (0) from the dividend after 45, then repeat: 450 / 213

Moving on to step 4:
If we divide 450 by 213, we get 2 and a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Deduct 426 from 450 and we're left with 24.
Grab the next digit (6) from the dividend, add it to 24, then carry on: 246 / 213

Moving on to step 5:
When dividing 246 by 213, we get 1 with a remainder of 33.
The number 1 becomes the next digit in our result. 
Result so far: 121.0
Deduct 213 from 246 and we're left with 33.
Bring next digit (8) of the dividend behind the 33 and repeat the process: 338 / 213

Moving on to step 6:
213 can be fit into 338 1 times, resulting in a remainder of 125.
Record the quotient 1 as the next digit in the result. 
Result so far: 1211.0
If we subtract 213 from 338, we get 125.
Include the next digit (3) from the dividend after 125, then repeat: 1253 / 213

Moving on to step 7:
213 goes into 1253 5 times with a remainder of 188.
Put 5 as the next digit of the answer. 
Result so far: 12115.0
The remainder is 188 after subtracting 1065 from 1253.
Grab the next digit (7) from the dividend, add it to 188, then carry on: 1887 / 213

Let's proceed to step 8:
If we divide 1887 by 213, we get 8 and a remainder of 183.
Record the quotient 8 as the next digit in the result. 
Result so far: 121158.0
If we subtract 1704 from 1887, we get 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Let's proceed to step 9:
1830 divided by 213 is 8 with a remainder of 126.
Use 8 as the next digit of our solution. 
Result so far: 121158.8
If we take 1704 away from 1830, we end up with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Advancing to step 10:
213 can be fit into 1260 5 times, resulting in a remainder of 195.
Record the quotient 5 as the next digit in the result. 
Result so far: 121158.85
The remainder is 195 after subtracting 1065 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

On to step 11:
The number 213 fits into 1950 9 times, leaving a remainder of 33.
Write down 9 as next digit of the result. 
Result so far: 121158.859
The remainder is 33 after subtracting 1917 from 1950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 12:
When dividing 330 by 213, we get 1 with a remainder of 117.
Put 1 as the next digit of the answer. 
Result so far: 121158.8591
Deduct 213 from 330 and we're left with 117.
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 13:
When dividing 1170 by 213, we get 5 with a remainder of 105.
Record the quotient 5 as the next digit in the result. 
Result so far: 121158.85915
Subtract 1065 from 1170 to get 105.
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 14:
213 goes into 1050 4 times with a remainder of 198.
Use 4 as the next digit of our solution. 
Result so far: 121158.859154
If we take 852 away from 1050, we end up with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Moving on to step 15:
213 can be fit into 1980 9 times, resulting in a remainder of 63.
The next digit of our result is 9. 
Result so far: 121158.8591549
If we take 1917 away from 1980, we end up 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.

On to step 16:
630 divided by 213 is 2 with a remainder of 204.
Write down 2 as next digit of the result. 
Result so far: 121158.85915492
The remainder is 204 after subtracting 426 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Our division results in 121158.85915492 with a remaining 2.04e-07.