12370806 divided by 397 
We want to figure out the number of times 12370806 can be divided by 397.

Step 1:
397 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 397

On to step 2:
If we divide 12 by 397, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (3) from the dividend, add it to 12, then carry on: 123 / 397

Advancing to step 3:
123 divided by 397 is 0 with a remainder of 123.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 123 to get 123.
Include the next digit (7) from the dividend after 123, then repeat: 1237 / 397

Step 4:
The number 397 fits into 1237 3 times, leaving a remainder of 46.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 1191 from 1237 to get 46.
Take the next digit (0) from the dividend and append it to 46, then repeat: 460 / 397

Moving on to step 5:
The number 397 fits into 460 1 times, leaving a remainder of 63.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
If we take 397 away from 460, we end up with 63.
Grab the next digit (8) from the dividend, add it to 63, then carry on: 638 / 397

Step 6:
If we divide 638 by 397, we get 1 and a remainder of 241.
Use 1 as the next digit of our solution. 
Result so far: 311.0
Subtracting 397 from 638 leaves us with 241.
Bring next digit (0) of the dividend behind the 241 and repeat the process: 2410 / 397

Going ahead to step 7:
If we divide 2410 by 397, we get 6 and a remainder of 28.
Use 6 as the next digit of our solution. 
Result so far: 3116.0
If we subtract 2382 from 2410, we get 28.
Append the next digit (6) from the dividend to 28 and continue with: 286 / 397

Let's proceed to step 8:
When dividing 286 by 397, we get 0 with a remainder of 286.
The number 0 becomes the next digit in our result. 
Result so far: 31160.0
Subtracting 0 from 286 leaves us with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

On to step 9:
When dividing 2860 by 397, we get 7 with a remainder of 81.
Write down 7 as next digit of the result. 
Result so far: 31160.7
Deduct 2779 from 2860 and we're left with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Let's proceed to step 10:
810 divided by 397 is 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 31160.72
If we take 794 away from 810, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 11:
397 goes into 160 0 times with a remainder of 160.
Put 0 as the next digit of the answer. 
Result so far: 31160.72
The remainder is 160 after subtracting 0 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 12:
1600 divided by 397 is 4 with a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 31160.7204
Subtract 1588 from 1600 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 13:
If we divide 120 by 397, we get 0 and a remainder of 120.
Record the quotient 0 as the next digit in the result. 
Result so far: 31160.7204
If we take 0 away from 120, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 14:
When dividing 1200 by 397, we get 3 with a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 31160.720403
Subtract 1191 from 1200 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 15:
When dividing 90 by 397, we get 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 31160.720403
Subtracting 0 from 90 leaves us with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 16:
397 goes into 900 2 times with a remainder of 106.
Use 2 as the next digit of our solution. 
Result so far: 31160.72040302
If we take 794 away from 900, we end up with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

The quotient of the division is 31160.72040302, and the remainder is 1.06e-07.