Let's divide 42186437 by 901
We're looking to find how many times 901 goes into 42186437.

Step 1:
901 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 901

On to step 2:
901 goes into 42 0 times with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Fetch the next digit (1) from the dividend, attach it to 42 and continue: 421 / 901

Advancing to step 3:
421 divided by 901 is 0 with a remainder of 421.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 421, we get 421.
Append the next digit (8) from the dividend to 421 and continue with: 4218 / 901

On to step 4:
901 goes into 4218 4 times with a remainder of 614.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 3604 from 4218 leaves us with 614.
Grab the next digit (6) from the dividend, add it to 614, then carry on: 6146 / 901

On to step 5:
The number 901 fits into 6146 6 times, leaving a remainder of 740.
Use 6 as the next digit of our solution. 
Result so far: 46.0
Subtract 5406 from 6146 to get 740.
Append the next digit (4) from the dividend to 740 and continue with: 7404 / 901

Step 6:
When dividing 7404 by 901, we get 8 with a remainder of 196.
Record the quotient 8 as the next digit in the result. 
Result so far: 468.0
Subtracting 7208 from 7404 leaves us with 196.
Fetch the next digit (3) from the dividend, attach it to 196 and continue: 1963 / 901

Moving on to step 7:
When dividing 1963 by 901, we get 2 with a remainder of 161.
The number 2 becomes the next digit in our result. 
Result so far: 4682.0
If we subtract 1802 from 1963, we get 161.
Append the next digit (7) from the dividend to 161 and continue with: 1617 / 901

Advancing to step 8:
The number 901 fits into 1617 1 times, leaving a remainder of 716.
The number 1 becomes the next digit in our result. 
Result so far: 46821.0
If we take 901 away from 1617, we end up with 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Going ahead to step 9:
7160 divided by 901 is 7 with a remainder of 853.
Record the quotient 7 as the next digit in the result. 
Result so far: 46821.7
Subtracting 6307 from 7160 leaves us with 853.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8530, and continue the process.

Moving on to step 10:
The number 901 fits into 8530 9 times, leaving a remainder of 421.
Write down 9 as next digit of the result. 
Result so far: 46821.79
If we subtract 8109 from 8530, we get 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

Advancing to step 11:
When dividing 4210 by 901, we get 4 with a remainder of 606.
The next digit of our result is 4. 
Result so far: 46821.794
If we subtract 3604 from 4210, we get 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Going ahead to step 12:
901 can be fit into 6060 6 times, resulting in a remainder of 654.
Use 6 as the next digit of our solution. 
Result so far: 46821.7946
Subtracting 5406 from 6060 leaves us with 654.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

Going ahead to step 13:
When dividing 6540 by 901, we get 7 with a remainder of 233.
Record the quotient 7 as the next digit in the result. 
Result so far: 46821.79467
The remainder is 233 after subtracting 6307 from 6540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Moving on to step 14:
When dividing 2330 by 901, we get 2 with a remainder of 528.
Put 2 as the next digit of the answer. 
Result so far: 46821.794672
Subtracting 1802 from 2330 leaves us with 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Going ahead to step 15:
When dividing 5280 by 901, we get 5 with a remainder of 775.
Use 5 as the next digit of our solution. 
Result so far: 46821.7946725
If we take 4505 away from 5280, we end up with 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

Let's proceed to step 16:
The number 901 fits into 7750 8 times, leaving a remainder of 542.
Record the quotient 8 as the next digit in the result. 
Result so far: 46821.79467258
Subtract 7208 from 7750 to get 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

After the division, we end up with 46821.79467258 and a remainder of 5.42e-07.