We look at the division of 37546199 by 643 
We want to figure out the number of times 37546199 can be divided by 643.

Step 1:
3 divided by 643 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 643

Let's proceed to step 2:
If we divide 37 by 643, we get 0 and a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 37 after subtracting 0 from 37.
Take the next digit (5) from the dividend and append it to 37, then repeat: 375 / 643

Let's proceed to step 3:
375 divided by 643 is 0 with a remainder of 375.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 375 and we're left with 375.
Grab the next digit (4) from the dividend, add it to 375, then carry on: 3754 / 643

On to step 4:
643 can be fit into 3754 5 times, resulting in a remainder of 539.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 3215 from 3754 leaves us with 539.
Take the next digit (6) from the dividend and append it to 539, then repeat: 5396 / 643

Advancing to step 5:
The number 643 fits into 5396 8 times, leaving a remainder of 252.
Put 8 as the next digit of the answer. 
Result so far: 58.0
If we subtract 5144 from 5396, we get 252.
Append the next digit (1) from the dividend to 252 and continue with: 2521 / 643

Let's proceed to step 6:
If we divide 2521 by 643, we get 3 and a remainder of 592.
Write down 3 as next digit of the result. 
Result so far: 583.0
The remainder is 592 after subtracting 1929 from 2521.
Fetch the next digit (9) from the dividend, attach it to 592 and continue: 5929 / 643

On to step 7:
The number 643 fits into 5929 9 times, leaving a remainder of 142.
Write down 9 as next digit of the result. 
Result so far: 5839.0
If we subtract 5787 from 5929, we get 142.
Include the next digit (9) from the dividend after 142, then repeat: 1429 / 643

Step 8:
The number 643 fits into 1429 2 times, leaving a remainder of 143.
The number 2 becomes the next digit in our result. 
Result so far: 58392.0
If we take 1286 away from 1429, we end up with 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Step 9:
643 goes into 1430 2 times with a remainder of 144.
Write down 2 as next digit of the result. 
Result so far: 58392.2
Subtract 1286 from 1430 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Moving on to step 10:
1440 divided by 643 is 2 with a remainder of 154.
Write down 2 as next digit of the result. 
Result so far: 58392.22
Deduct 1286 from 1440 and we're left with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Our division results in 58392.22 with a remaining 0.154.