We're dividing 45099840 by 397 
Our goal is to divide 45099840 by 397.

Advancing to step 1:
397 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 397

Advancing to step 2:
When dividing 45 by 397, we get 0 with a remainder of 45.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Grab the next digit (0) from the dividend, add it to 45, then carry on: 450 / 397

On to step 3:
397 can be fit into 450 1 times, resulting in a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 53 after subtracting 397 from 450.
Bring next digit (9) of the dividend behind the 53 and repeat the process: 539 / 397

Moving on to step 4:
The number 397 fits into 539 1 times, leaving a remainder of 142.
Write down 1 as next digit of the result. 
Result so far: 11.0
If we subtract 397 from 539, we get 142.
Fetch the next digit (9) from the dividend, attach it to 142 and continue: 1429 / 397

Step 5:
The number 397 fits into 1429 3 times, leaving a remainder of 238.
Write down 3 as next digit of the result. 
Result so far: 113.0
If we subtract 1191 from 1429, we get 238.
Fetch the next digit (8) from the dividend, attach it to 238 and continue: 2388 / 397

Going ahead to step 6:
2388 divided by 397 is 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 1136.0
The remainder is 6 after subtracting 2382 from 2388.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 397

Going ahead to step 7:
64 divided by 397 is 0 with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 11360.0
Deduct 0 from 64 and we're left with 64.
Fetch the next digit (0) from the dividend, attach it to 64 and continue: 640 / 397

Step 8:
When dividing 640 by 397, we get 1 with a remainder of 243.
The next digit of our result is 1. 
Result so far: 113601.0
Subtracting 397 from 640 leaves us with 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Moving on to step 9:
If we divide 2430 by 397, we get 6 and a remainder of 48.
The number 6 becomes the next digit in our result. 
Result so far: 113601.6
Subtracting 2382 from 2430 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
When dividing 480 by 397, we get 1 with a remainder of 83.
Record the quotient 1 as the next digit in the result. 
Result so far: 113601.61
If we subtract 397 from 480, we get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 11:
When dividing 830 by 397, we get 2 with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 113601.612
The remainder is 36 after subtracting 794 from 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 12:
360 divided by 397 is 0 with a remainder of 360.
The number 0 becomes the next digit in our result. 
Result so far: 113601.612
Subtracting 0 from 360 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 13:
When dividing 3600 by 397, we get 9 with a remainder of 27.
Write down 9 as next digit of the result. 
Result so far: 113601.61209
Deduct 3573 from 3600 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 14:
270 divided by 397 is 0 with a remainder of 270.
Record the quotient 0 as the next digit in the result. 
Result so far: 113601.61209
Deduct 0 from 270 and we're left with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Advancing to step 15:
397 goes into 2700 6 times with a remainder of 318.
Use 6 as the next digit of our solution. 
Result so far: 113601.6120906
Subtracting 2382 from 2700 leaves us with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Step 16:
397 goes into 3180 8 times with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 113601.61209068
If we subtract 3176 from 3180, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 113601.61209068, with a leftover of 4e-09.